--- _id: '13347' abstract: - lang: eng text: Confining molecules within well-defined nanosized spaces can profoundly alter their physicochemical characteristics. For example, the controlled aggregation of chromophores into discrete oligomers has been shown to tune their optical properties whereas encapsulation of reactive species within molecular hosts can increase their stability. The resazurin/resorufin pair has been widely used for detecting redox processes in biological settings; yet, how tight confinement affects the properties of these two dyes remains to be explored. Here, we show that a flexible PdII6L4 coordination cage can efficiently encapsulate both resorufin and resazurin in the form of dimers, dramatically modulating their optical properties. Furthermore, binding within the cage significantly decreases the reduction rate of resazurin to resorufin, and the rate of the subsequent reduction of resorufin to dihydroresorufin. During our studies, we also found that upon dilution, the PdII6L4 cage disassembles to afford PdII2L2 species, which lacks the ability to form inclusion complexes – a process that can be reversed upon the addition of the strongly binding resorufin/resazurin guests. We expect that the herein disclosed ability of a water-soluble cage to reversibly modulate the optical and chemical properties of a molecular redox probe will expand the versatility of synthetic fluorescent probes in biologically relevant environments. article_number: '44' article_processing_charge: No article_type: original author: - first_name: Oksana full_name: Yanshyna, Oksana last_name: Yanshyna - first_name: Michał J. full_name: Białek, Michał J. last_name: Białek - first_name: Oleg V. full_name: Chashchikhin, Oleg V. last_name: Chashchikhin - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Yanshyna O, Białek MJ, Chashchikhin OV, Klajn R. Encapsulation within a coordination cage modulates the reactivity of redox-active dyes. Communications Chemistry. 2022;5. doi:10.1038/s42004-022-00658-8 apa: Yanshyna, O., Białek, M. J., Chashchikhin, O. V., & Klajn, R. (2022). Encapsulation within a coordination cage modulates the reactivity of redox-active dyes. Communications Chemistry. Springer Nature. https://doi.org/10.1038/s42004-022-00658-8 chicago: Yanshyna, Oksana, Michał J. Białek, Oleg V. Chashchikhin, and Rafal Klajn. “Encapsulation within a Coordination Cage Modulates the Reactivity of Redox-Active Dyes.” Communications Chemistry. Springer Nature, 2022. https://doi.org/10.1038/s42004-022-00658-8. ieee: O. Yanshyna, M. J. Białek, O. V. Chashchikhin, and R. Klajn, “Encapsulation within a coordination cage modulates the reactivity of redox-active dyes,” Communications Chemistry, vol. 5. Springer Nature, 2022. ista: Yanshyna O, Białek MJ, Chashchikhin OV, Klajn R. 2022. Encapsulation within a coordination cage modulates the reactivity of redox-active dyes. Communications Chemistry. 5, 44. mla: Yanshyna, Oksana, et al. “Encapsulation within a Coordination Cage Modulates the Reactivity of Redox-Active Dyes.” Communications Chemistry, vol. 5, 44, Springer Nature, 2022, doi:10.1038/s42004-022-00658-8. short: O. Yanshyna, M.J. Białek, O.V. Chashchikhin, R. Klajn, Communications Chemistry 5 (2022). date_created: 2023-08-01T09:30:47Z date_published: 2022-03-30T00:00:00Z date_updated: 2023-08-02T06:41:54Z day: '30' doi: 10.1038/s42004-022-00658-8 extern: '1' intvolume: ' 5' keyword: - Materials Chemistry - Biochemistry - Environmental Chemistry - General Chemistry language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1038/s42004-022-00658-8 month: '03' oa: 1 oa_version: Published Version publication: Communications Chemistry publication_identifier: eissn: - 2399-3669 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Encapsulation within a coordination cage modulates the reactivity of redox-active dyes type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2022' ... --- _id: '13348' abstract: - lang: eng text: Molecular confinement effects can profoundly alter the physicochemical properties of the confined species. A plethora of organic molecules were encapsulated within the cavities of supramolecular hosts, and the impact of the cavity size and polarity was widely investigated. However, the extent to which the properties of the confined guests can be affected by the symmetry of the cage─which dictates the shape of the cavity─remains to be understood. Here we show that cage symmetry has a dramatic effect on the equilibrium between two isomers of the encapsulated spiropyran guests. Working with two Pd-based coordination cages featuring similarly sized but differently shaped hydrophobic cavities, we found a highly selective stabilization of the isomer whose shape matches that of the cavity of the cage. A Td-symmetric cage stabilized the spiropyrans’ colorless form and rendered them photochemically inert. In contrast, a D2h-symmetric cage favored the colored isomer, while maintaining reversible photoswitching between the two states of the encapsulated spiropyrans. We also show that the switching kinetics strongly depend on the substitution pattern on the spiropyran scaffold. This finding was used to fabricate a time-sensitive information storage medium with tunable lifetimes of the encoded messages. article_processing_charge: No article_type: original author: - first_name: Jinhua full_name: Wang, Jinhua last_name: Wang - first_name: Liat full_name: Avram, Liat last_name: Avram - first_name: Yael full_name: Diskin-Posner, Yael last_name: Diskin-Posner - first_name: Michał J. full_name: Białek, Michał J. last_name: Białek - first_name: Wojciech full_name: Stawski, Wojciech last_name: Stawski - first_name: Moran full_name: Feller, Moran last_name: Feller - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Wang J, Avram L, Diskin-Posner Y, et al. Altering the properties of spiropyran switches using coordination cages with different symmetries. Journal of the American Chemical Society. 2022;144(46):21244-21254. doi:10.1021/jacs.2c08901 apa: Wang, J., Avram, L., Diskin-Posner, Y., Białek, M. J., Stawski, W., Feller, M., & Klajn, R. (2022). Altering the properties of spiropyran switches using coordination cages with different symmetries. Journal of the American Chemical Society. American Chemical Society. https://doi.org/10.1021/jacs.2c08901 chicago: Wang, Jinhua, Liat Avram, Yael Diskin-Posner, Michał J. Białek, Wojciech Stawski, Moran Feller, and Rafal Klajn. “Altering the Properties of Spiropyran Switches Using Coordination Cages with Different Symmetries.” Journal of the American Chemical Society. American Chemical Society, 2022. https://doi.org/10.1021/jacs.2c08901. ieee: J. Wang et al., “Altering the properties of spiropyran switches using coordination cages with different symmetries,” Journal of the American Chemical Society, vol. 144, no. 46. American Chemical Society, pp. 21244–21254, 2022. ista: Wang J, Avram L, Diskin-Posner Y, Białek MJ, Stawski W, Feller M, Klajn R. 2022. Altering the properties of spiropyran switches using coordination cages with different symmetries. Journal of the American Chemical Society. 144(46), 21244–21254. mla: Wang, Jinhua, et al. “Altering the Properties of Spiropyran Switches Using Coordination Cages with Different Symmetries.” Journal of the American Chemical Society, vol. 144, no. 46, American Chemical Society, 2022, pp. 21244–54, doi:10.1021/jacs.2c08901. short: J. Wang, L. Avram, Y. Diskin-Posner, M.J. Białek, W. Stawski, M. Feller, R. Klajn, Journal of the American Chemical Society 144 (2022) 21244–21254. date_created: 2023-08-01T09:31:01Z date_published: 2022-11-15T00:00:00Z date_updated: 2023-08-02T06:39:50Z day: '15' doi: 10.1021/jacs.2c08901 extern: '1' intvolume: ' 144' issue: '46' keyword: - Colloid and Surface Chemistry - Biochemistry - General Chemistry - Catalysis language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1021/jacs.2c08901 month: '11' oa: 1 oa_version: Published Version page: 21244-21254 publication: Journal of the American Chemical Society publication_identifier: eissn: - 1520-5126 issn: - 0002-7863 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Altering the properties of spiropyran switches using coordination cages with different symmetries type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 144 year: '2022' ... --- _id: '13350' abstract: - lang: eng text: Confinement within molecular cages can dramatically modify the physicochemical properties of the encapsulated guest molecules, but such host-guest complexes have mainly been studied in a static context. Combining confinement effects with fast guest exchange kinetics could pave the way toward stimuli-responsive supramolecular systems—and ultimately materials—whose desired properties could be tailored “on demand” rapidly and reversibly. Here, we demonstrate rapid guest exchange between inclusion complexes of an open-window coordination cage that can simultaneously accommodate two guest molecules. Working with two types of guests, anthracene derivatives and BODIPY dyes, we show that the former can substantially modify the optical properties of the latter upon noncovalent heterodimer formation. We also studied the light-induced covalent dimerization of encapsulated anthracenes and found large effects of confinement on reaction rates. By coupling the photodimerization with the rapid guest exchange, we developed a new way to modulate fluorescence using external irradiation. article_processing_charge: No article_type: original author: - first_name: Julius full_name: Gemen, Julius last_name: Gemen - first_name: Michał J. full_name: Białek, Michał J. last_name: Białek - first_name: Miri full_name: Kazes, Miri last_name: Kazes - first_name: Linda J.W. full_name: Shimon, Linda J.W. last_name: Shimon - first_name: Moran full_name: Feller, Moran last_name: Feller - first_name: Sergey N. full_name: Semenov, Sergey N. last_name: Semenov - first_name: Yael full_name: Diskin-Posner, Yael last_name: Diskin-Posner - first_name: Dan full_name: Oron, Dan last_name: Oron - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Gemen J, Białek MJ, Kazes M, et al. Ternary host-guest complexes with rapid exchange kinetics and photoswitchable fluorescence. Chem. 2022;8(9):2362-2379. doi:10.1016/j.chempr.2022.05.008 apa: Gemen, J., Białek, M. J., Kazes, M., Shimon, L. J. W., Feller, M., Semenov, S. N., … Klajn, R. (2022). Ternary host-guest complexes with rapid exchange kinetics and photoswitchable fluorescence. Chem. Elsevier. https://doi.org/10.1016/j.chempr.2022.05.008 chicago: Gemen, Julius, Michał J. Białek, Miri Kazes, Linda J.W. Shimon, Moran Feller, Sergey N. Semenov, Yael Diskin-Posner, Dan Oron, and Rafal Klajn. “Ternary Host-Guest Complexes with Rapid Exchange Kinetics and Photoswitchable Fluorescence.” Chem. Elsevier, 2022. https://doi.org/10.1016/j.chempr.2022.05.008. ieee: J. Gemen et al., “Ternary host-guest complexes with rapid exchange kinetics and photoswitchable fluorescence,” Chem, vol. 8, no. 9. Elsevier, pp. 2362–2379, 2022. ista: Gemen J, Białek MJ, Kazes M, Shimon LJW, Feller M, Semenov SN, Diskin-Posner Y, Oron D, Klajn R. 2022. Ternary host-guest complexes with rapid exchange kinetics and photoswitchable fluorescence. Chem. 8(9), 2362–2379. mla: Gemen, Julius, et al. “Ternary Host-Guest Complexes with Rapid Exchange Kinetics and Photoswitchable Fluorescence.” Chem, vol. 8, no. 9, Elsevier, 2022, pp. 2362–79, doi:10.1016/j.chempr.2022.05.008. short: J. Gemen, M.J. Białek, M. Kazes, L.J.W. Shimon, M. Feller, S.N. Semenov, Y. Diskin-Posner, D. Oron, R. Klajn, Chem 8 (2022) 2362–2379. date_created: 2023-08-01T09:32:14Z date_published: 2022-09-08T00:00:00Z date_updated: 2023-08-02T09:39:35Z day: '08' doi: 10.1016/j.chempr.2022.05.008 extern: '1' external_id: pmid: - '36133801' intvolume: ' 8' issue: '9' keyword: - Materials Chemistry - Biochemistry (medical) - General Chemical Engineering - Environmental Chemistry - Biochemistry - General Chemistry language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.chempr.2022.05.008 month: '09' oa: 1 oa_version: Published Version page: 2362-2379 pmid: 1 publication: Chem publication_identifier: eissn: - 2451-9294 issn: - 2451-9308 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Ternary host-guest complexes with rapid exchange kinetics and photoswitchable fluorescence type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2022' ... --- _id: '13351' abstract: - lang: eng text: 'Molecular recognition is at the heart of the noncovalent synthesis of supramolecular assemblies and, at higher length scales, supramolecular materials. In a recent publication in Nature, Stoddart and co-workers demonstrate that the formation of host-guest complexes can be catalyzed by one of the simplest possible catalysts: the electron.' article_processing_charge: No article_type: original author: - first_name: Julius full_name: Gemen, Julius last_name: Gemen - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Gemen J, Klajn R. Electron catalysis expands the supramolecular chemist’s toolbox. Chem. 2022;8(5):1183-1186. doi:10.1016/j.chempr.2022.04.022 apa: Gemen, J., & Klajn, R. (2022). Electron catalysis expands the supramolecular chemist’s toolbox. Chem. Elsevier. https://doi.org/10.1016/j.chempr.2022.04.022 chicago: Gemen, Julius, and Rafal Klajn. “Electron Catalysis Expands the Supramolecular Chemist’s Toolbox.” Chem. Elsevier, 2022. https://doi.org/10.1016/j.chempr.2022.04.022. ieee: J. Gemen and R. Klajn, “Electron catalysis expands the supramolecular chemist’s toolbox,” Chem, vol. 8, no. 5. Elsevier, pp. 1183–1186, 2022. ista: Gemen J, Klajn R. 2022. Electron catalysis expands the supramolecular chemist’s toolbox. Chem. 8(5), 1183–1186. mla: Gemen, Julius, and Rafal Klajn. “Electron Catalysis Expands the Supramolecular Chemist’s Toolbox.” Chem, vol. 8, no. 5, Elsevier, 2022, pp. 1183–86, doi:10.1016/j.chempr.2022.04.022. short: J. Gemen, R. Klajn, Chem 8 (2022) 1183–1186. date_created: 2023-08-01T09:32:27Z date_published: 2022-05-12T00:00:00Z date_updated: 2023-08-02T07:24:57Z day: '12' doi: 10.1016/j.chempr.2022.04.022 extern: '1' intvolume: ' 8' issue: '5' keyword: - Materials Chemistry - Biochemistry (medical) - General Chemical Engineering - Environmental Chemistry - Biochemistry - General Chemistry language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.chempr.2022.04.022 month: '05' oa: 1 oa_version: Published Version page: 1183-1186 publication: Chem publication_identifier: eissn: - 2451-9294 issn: - 2451-9308 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Electron catalysis expands the supramolecular chemist’s toolbox type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2022' ... --- _id: '13352' abstract: - lang: eng text: Optoelectronic effects differentiating absorption of right and left circularly polarized photons in thin films of chiral materials are typically prohibitively small for their direct photocurrent observation. Chiral metasurfaces increase the electronic sensitivity to circular polarization, but their out-of-plane architecture entails manufacturing and performance trade-offs. Here, we show that nanoporous thin films of chiral nanoparticles enable high sensitivity to circular polarization due to light-induced polarization-dependent ion accumulation at nanoparticle interfaces. Self-assembled multilayers of gold nanoparticles modified with L-phenylalanine generate a photocurrent under right-handed circularly polarized light as high as 2.41 times higher than under left-handed circularly polarized light. The strong plasmonic coupling between the multiple nanoparticles producing planar chiroplasmonic modes facilitates the ejection of electrons, whose entrapment at the membrane–electrolyte interface is promoted by a thick layer of enantiopure phenylalanine. Demonstrated detection of light ellipticity with equal sensitivity at all incident angles mimics phenomenological aspects of polarization vision in marine animals. The simplicity of self-assembly and sensitivity of polarization detection found in optoionic membranes opens the door to a family of miniaturized fluidic devices for chiral photonics. article_processing_charge: No article_type: original author: - first_name: Jiarong full_name: Cai, Jiarong last_name: Cai - first_name: Wei full_name: Zhang, Wei last_name: Zhang - first_name: Liguang full_name: Xu, Liguang last_name: Xu - first_name: Changlong full_name: Hao, Changlong last_name: Hao - first_name: Wei full_name: Ma, Wei last_name: Ma - first_name: Maozhong full_name: Sun, Maozhong last_name: Sun - first_name: Xiaoling full_name: Wu, Xiaoling last_name: Wu - first_name: Xian full_name: Qin, Xian last_name: Qin - first_name: Felippe Mariano full_name: Colombari, Felippe Mariano last_name: Colombari - first_name: André Farias full_name: de Moura, André Farias last_name: de Moura - first_name: Jiahui full_name: Xu, Jiahui last_name: Xu - first_name: Mariana Cristina full_name: Silva, Mariana Cristina last_name: Silva - first_name: Evaldo Batista full_name: Carneiro-Neto, Evaldo Batista last_name: Carneiro-Neto - first_name: Weverson Rodrigues full_name: Gomes, Weverson Rodrigues last_name: Gomes - first_name: Renaud A. L. full_name: Vallée, Renaud A. L. last_name: Vallée - first_name: Ernesto Chaves full_name: Pereira, Ernesto Chaves last_name: Pereira - first_name: Xiaogang full_name: Liu, Xiaogang last_name: Liu - first_name: Chuanlai full_name: Xu, Chuanlai last_name: Xu - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn - first_name: Nicholas A. full_name: Kotov, Nicholas A. last_name: Kotov - first_name: Hua full_name: Kuang, Hua last_name: Kuang citation: ama: Cai J, Zhang W, Xu L, et al. Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. Nature Nanotechnology. 2022;17(4):408-416. doi:10.1038/s41565-022-01079-3 apa: Cai, J., Zhang, W., Xu, L., Hao, C., Ma, W., Sun, M., … Kuang, H. (2022). Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. Nature Nanotechnology. Springer Nature. https://doi.org/10.1038/s41565-022-01079-3 chicago: Cai, Jiarong, Wei Zhang, Liguang Xu, Changlong Hao, Wei Ma, Maozhong Sun, Xiaoling Wu, et al. “Polarization-Sensitive Optoionic Membranes from Chiral Plasmonic Nanoparticles.” Nature Nanotechnology. Springer Nature, 2022. https://doi.org/10.1038/s41565-022-01079-3. ieee: J. Cai et al., “Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles,” Nature Nanotechnology, vol. 17, no. 4. Springer Nature, pp. 408–416, 2022. ista: Cai J, Zhang W, Xu L, Hao C, Ma W, Sun M, Wu X, Qin X, Colombari FM, de Moura AF, Xu J, Silva MC, Carneiro-Neto EB, Gomes WR, Vallée RAL, Pereira EC, Liu X, Xu C, Klajn R, Kotov NA, Kuang H. 2022. Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. Nature Nanotechnology. 17(4), 408–416. mla: Cai, Jiarong, et al. “Polarization-Sensitive Optoionic Membranes from Chiral Plasmonic Nanoparticles.” Nature Nanotechnology, vol. 17, no. 4, Springer Nature, 2022, pp. 408–16, doi:10.1038/s41565-022-01079-3. short: J. Cai, W. Zhang, L. Xu, C. Hao, W. Ma, M. Sun, X. Wu, X. Qin, F.M. Colombari, A.F. de Moura, J. Xu, M.C. Silva, E.B. Carneiro-Neto, W.R. Gomes, R.A.L. Vallée, E.C. Pereira, X. Liu, C. Xu, R. Klajn, N.A. Kotov, H. Kuang, Nature Nanotechnology 17 (2022) 408–416. date_created: 2023-08-01T09:32:40Z date_published: 2022-03-14T00:00:00Z date_updated: 2023-08-02T09:44:31Z day: '14' doi: 10.1038/s41565-022-01079-3 extern: '1' external_id: pmid: - '35288671' intvolume: ' 17' issue: '4' keyword: - Electrical and Electronic Engineering - Condensed Matter Physics - General Materials Science - Biomedical Engineering - Atomic and Molecular Physics - and Optics - Bioengineering language: - iso: eng main_file_link: - open_access: '1' url: https://hal.science/hal-03623036/ month: '03' oa: 1 oa_version: Published Version page: 408-416 pmid: 1 publication: Nature Nanotechnology publication_identifier: eissn: - 1748-3395 issn: - 1748-3387 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2022' ... --- _id: '13353' abstract: - lang: eng text: We show that the optical properties of indigo carmine can be modulated by encapsulation within a coordination cage. Depending on the host/guest molar ratio, the cage can predominantly encapsulate either one or two dye molecules. The 1 : 1 complex is fluorescent, unique for an indigo dye in an aqueous solution. We have also found that binding two dye molecules stabilizes a previously unknown conformation of the cage. article_processing_charge: No article_type: original author: - first_name: Oksana full_name: Yanshyna, Oksana last_name: Yanshyna - first_name: Liat full_name: Avram, Liat last_name: Avram - first_name: Linda J. W. full_name: Shimon, Linda J. W. last_name: Shimon - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Yanshyna O, Avram L, Shimon LJW, Klajn R. Coexistence of 1:1 and 2:1 inclusion complexes of indigo carmine. Chemical Communications. 2022;58(21):3461-3464. doi:10.1039/d1cc07081a apa: Yanshyna, O., Avram, L., Shimon, L. J. W., & Klajn, R. (2022). Coexistence of 1:1 and 2:1 inclusion complexes of indigo carmine. Chemical Communications. Royal Society of Chemistry. https://doi.org/10.1039/d1cc07081a chicago: Yanshyna, Oksana, Liat Avram, Linda J. W. Shimon, and Rafal Klajn. “Coexistence of 1:1 and 2:1 Inclusion Complexes of Indigo Carmine.” Chemical Communications. Royal Society of Chemistry, 2022. https://doi.org/10.1039/d1cc07081a. ieee: O. Yanshyna, L. Avram, L. J. W. Shimon, and R. Klajn, “Coexistence of 1:1 and 2:1 inclusion complexes of indigo carmine,” Chemical Communications, vol. 58, no. 21. Royal Society of Chemistry, pp. 3461–3464, 2022. ista: Yanshyna O, Avram L, Shimon LJW, Klajn R. 2022. Coexistence of 1:1 and 2:1 inclusion complexes of indigo carmine. Chemical Communications. 58(21), 3461–3464. mla: Yanshyna, Oksana, et al. “Coexistence of 1:1 and 2:1 Inclusion Complexes of Indigo Carmine.” Chemical Communications, vol. 58, no. 21, Royal Society of Chemistry, 2022, pp. 3461–64, doi:10.1039/d1cc07081a. short: O. Yanshyna, L. Avram, L.J.W. Shimon, R. Klajn, Chemical Communications 58 (2022) 3461–3464. date_created: 2023-08-01T09:32:55Z date_published: 2022-01-22T00:00:00Z date_updated: 2023-08-02T09:46:51Z day: '22' doi: 10.1039/d1cc07081a extern: '1' external_id: pmid: - '35064258' intvolume: ' 58' issue: '21' keyword: - Materials Chemistry - Metals and Alloys - Surfaces - Coatings and Films - General Chemistry - Ceramics and Composites - Electronic - Optical and Magnetic Materials - Catalysis language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1039/D1CC07081A month: '01' oa: 1 oa_version: Published Version page: 3461-3464 pmid: 1 publication: Chemical Communications publication_identifier: eissn: - 1364-548X issn: - 1359-7345 publication_status: published publisher: Royal Society of Chemistry quality_controlled: '1' scopus_import: '1' status: public title: Coexistence of 1:1 and 2:1 inclusion complexes of indigo carmine type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 58 year: '2022' ... --- _id: '13355' abstract: - lang: eng text: 'Supramolecular self-assembly in biological systems holds promise to convert and amplify disease-specific signals to physical or mechanical signals that can direct cell fate. However, it remains challenging to design physiologically stable self-assembling systems that demonstrate tunable and predictable behavior. Here, the use of zwitterionic tetrapeptide modalities to direct nanoparticle assembly under physiological conditions is reported. The self-assembly of gold nanoparticles can be activated by enzymatic unveiling of surface-bound zwitterionic tetrapeptides through matrix metalloprotease-9 (MMP-9), which is overexpressed by cancer cells. This robust nanoparticle assembly is achieved by multivalent, self-complementary interactions of the zwitterionic tetrapeptides. In cancer cells that overexpress MMP-9, the nanoparticle assembly process occurs near the cell membrane and causes size-induced selection of cellular uptake mechanism, resulting in diminished cell growth. The enzyme responsiveness, and therefore, indirectly, the uptake route of the system can be programmed by customizing the peptide sequence: a simple inversion of the two amino acids at the cleavage site completely inactivates the enzyme responsiveness, self-assembly, and consequently changes the endocytic pathway. This robust self-complementary, zwitterionic peptide design demonstrates the use of enzyme-activated electrostatic side-chain patterns as powerful and customizable peptide modalities to program nanoparticle self-assembly and alter cellular response in biological context.' article_number: '2104962' article_processing_charge: No article_type: original author: - first_name: Richard H. full_name: Huang, Richard H. last_name: Huang - first_name: Nazia full_name: Nayeem, Nazia last_name: Nayeem - first_name: Ye full_name: He, Ye last_name: He - first_name: Jorge full_name: Morales, Jorge last_name: Morales - first_name: Duncan full_name: Graham, Duncan last_name: Graham - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn - first_name: Maria full_name: Contel, Maria last_name: Contel - first_name: Stephen full_name: O'Brien, Stephen last_name: O'Brien - first_name: Rein V. full_name: Ulijn, Rein V. last_name: Ulijn citation: ama: Huang RH, Nayeem N, He Y, et al. Self‐complementary zwitterionic peptides direct nanoparticle assembly and enable enzymatic selection of endocytic pathways. Advanced Materials. 2022;34(1). doi:10.1002/adma.202104962 apa: Huang, R. H., Nayeem, N., He, Y., Morales, J., Graham, D., Klajn, R., … Ulijn, R. V. (2022). Self‐complementary zwitterionic peptides direct nanoparticle assembly and enable enzymatic selection of endocytic pathways. Advanced Materials. Wiley. https://doi.org/10.1002/adma.202104962 chicago: Huang, Richard H., Nazia Nayeem, Ye He, Jorge Morales, Duncan Graham, Rafal Klajn, Maria Contel, Stephen O’Brien, and Rein V. Ulijn. “Self‐complementary Zwitterionic Peptides Direct Nanoparticle Assembly and Enable Enzymatic Selection of Endocytic Pathways.” Advanced Materials. Wiley, 2022. https://doi.org/10.1002/adma.202104962. ieee: R. H. Huang et al., “Self‐complementary zwitterionic peptides direct nanoparticle assembly and enable enzymatic selection of endocytic pathways,” Advanced Materials, vol. 34, no. 1. Wiley, 2022. ista: Huang RH, Nayeem N, He Y, Morales J, Graham D, Klajn R, Contel M, O’Brien S, Ulijn RV. 2022. Self‐complementary zwitterionic peptides direct nanoparticle assembly and enable enzymatic selection of endocytic pathways. Advanced Materials. 34(1), 2104962. mla: Huang, Richard H., et al. “Self‐complementary Zwitterionic Peptides Direct Nanoparticle Assembly and Enable Enzymatic Selection of Endocytic Pathways.” Advanced Materials, vol. 34, no. 1, 2104962, Wiley, 2022, doi:10.1002/adma.202104962. short: R.H. Huang, N. Nayeem, Y. He, J. Morales, D. Graham, R. Klajn, M. Contel, S. O’Brien, R.V. Ulijn, Advanced Materials 34 (2022). date_created: 2023-08-01T09:33:26Z date_published: 2022-01-06T00:00:00Z date_updated: 2023-08-07T09:58:17Z day: '06' doi: 10.1002/adma.202104962 extern: '1' external_id: pmid: - '34668253' intvolume: ' 34' issue: '1' keyword: - Mechanical Engineering - Mechanics of Materials - General Materials Science language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1002/adma.202104962 month: '01' oa: 1 oa_version: Published Version pmid: 1 publication: Advanced Materials publication_identifier: eissn: - 1521-4095 issn: - 0935-9648 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Self‐complementary zwitterionic peptides direct nanoparticle assembly and enable enzymatic selection of endocytic pathways type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 34 year: '2022' ... --- _id: '9199' abstract: - lang: eng text: "We associate a certain tensor product lattice to any primitive integer lattice and ask about its typical shape. These lattices are related to the tangent bundle of Grassmannians and their study is motivated by Peyre's programme on \"freeness\" for rational points of bounded height on Fano\r\nvarieties." acknowledgement: The authors are very grateful to Will Sawin for useful remarks about this topic. While working on this paper the first two authors were supported by EPSRC grant EP/P026710/1, and the first and last authors by FWF grant P 32428-N35. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Timothy D full_name: Browning, Timothy D id: 35827D50-F248-11E8-B48F-1D18A9856A87 last_name: Browning orcid: 0000-0002-8314-0177 - first_name: Tal full_name: Horesh, Tal id: C8B7BF48-8D81-11E9-BCA9-F536E6697425 last_name: Horesh - first_name: Florian Alexander full_name: Wilsch, Florian Alexander id: 560601DA-8D36-11E9-A136-7AC1E5697425 last_name: Wilsch orcid: 0000-0001-7302-8256 citation: ama: Browning TD, Horesh T, Wilsch FA. Equidistribution and freeness on Grassmannians. Algebra & Number Theory. 2022;16(10):2385-2407. doi:10.2140/ant.2022.16.2385 apa: Browning, T. D., Horesh, T., & Wilsch, F. A. (2022). Equidistribution and freeness on Grassmannians. Algebra & Number Theory. Mathematical Sciences Publishers. https://doi.org/10.2140/ant.2022.16.2385 chicago: Browning, Timothy D, Tal Horesh, and Florian Alexander Wilsch. “Equidistribution and Freeness on Grassmannians.” Algebra & Number Theory. Mathematical Sciences Publishers, 2022. https://doi.org/10.2140/ant.2022.16.2385. ieee: T. D. Browning, T. Horesh, and F. A. Wilsch, “Equidistribution and freeness on Grassmannians,” Algebra & Number Theory, vol. 16, no. 10. Mathematical Sciences Publishers, pp. 2385–2407, 2022. ista: Browning TD, Horesh T, Wilsch FA. 2022. Equidistribution and freeness on Grassmannians. Algebra & Number Theory. 16(10), 2385–2407. mla: Browning, Timothy D., et al. “Equidistribution and Freeness on Grassmannians.” Algebra & Number Theory, vol. 16, no. 10, Mathematical Sciences Publishers, 2022, pp. 2385–407, doi:10.2140/ant.2022.16.2385. short: T.D. Browning, T. Horesh, F.A. Wilsch, Algebra & Number Theory 16 (2022) 2385–2407. date_created: 2021-02-25T09:56:57Z date_published: 2022-12-01T00:00:00Z date_updated: 2023-08-02T06:46:38Z day: '01' department: - _id: TiBr doi: 10.2140/ant.2022.16.2385 external_id: arxiv: - '2102.11552' isi: - '000961514100004' intvolume: ' 16' isi: 1 issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2102.11552 month: '12' oa: 1 oa_version: Preprint page: 2385-2407 project: - _id: 26A8D266-B435-11E9-9278-68D0E5697425 grant_number: EP-P026710-2 name: Between rational and integral points - _id: 26AEDAB2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P32428 name: New frontiers of the Manin conjecture publication: Algebra & Number Theory publication_identifier: eissn: - 1944-7833 issn: - 1937-0652 publication_status: published publisher: Mathematical Sciences Publishers quality_controlled: '1' scopus_import: '1' status: public title: Equidistribution and freeness on Grassmannians type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 16 year: '2022' ... --- _id: '9311' abstract: - lang: eng text: 'Partially observable Markov decision processes (POMDPs) are standard models for dynamic systems with probabilistic and nondeterministic behaviour in uncertain environments. We prove that in POMDPs with long-run average objective, the decision maker has approximately optimal strategies with finite memory. This implies notably that approximating the long-run value is recursively enumerable, as well as a weak continuity property of the value with respect to the transition function. ' acknowledgement: "Partially supported by Austrian Science Fund (FWF) NFN Grant No RiSE/SHiNE S11407, by CONICYT Chile through grant PII 20150140, and by ECOS-CONICYT through grant C15E03.\r\n" article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Raimundo J full_name: Saona Urmeneta, Raimundo J id: BD1DF4C4-D767-11E9-B658-BC13E6697425 last_name: Saona Urmeneta orcid: 0000-0001-5103-038X - first_name: Bruno full_name: Ziliotto, Bruno last_name: Ziliotto citation: ama: Chatterjee K, Saona Urmeneta RJ, Ziliotto B. Finite-memory strategies in POMDPs with long-run average objectives. Mathematics of Operations Research. 2022;47(1):100-119. doi:10.1287/moor.2020.1116 apa: Chatterjee, K., Saona Urmeneta, R. J., & Ziliotto, B. (2022). Finite-memory strategies in POMDPs with long-run average objectives. Mathematics of Operations Research. Institute for Operations Research and the Management Sciences. https://doi.org/10.1287/moor.2020.1116 chicago: Chatterjee, Krishnendu, Raimundo J Saona Urmeneta, and Bruno Ziliotto. “Finite-Memory Strategies in POMDPs with Long-Run Average Objectives.” Mathematics of Operations Research. Institute for Operations Research and the Management Sciences, 2022. https://doi.org/10.1287/moor.2020.1116. ieee: K. Chatterjee, R. J. Saona Urmeneta, and B. Ziliotto, “Finite-memory strategies in POMDPs with long-run average objectives,” Mathematics of Operations Research, vol. 47, no. 1. Institute for Operations Research and the Management Sciences, pp. 100–119, 2022. ista: Chatterjee K, Saona Urmeneta RJ, Ziliotto B. 2022. Finite-memory strategies in POMDPs with long-run average objectives. Mathematics of Operations Research. 47(1), 100–119. mla: Chatterjee, Krishnendu, et al. “Finite-Memory Strategies in POMDPs with Long-Run Average Objectives.” Mathematics of Operations Research, vol. 47, no. 1, Institute for Operations Research and the Management Sciences, 2022, pp. 100–19, doi:10.1287/moor.2020.1116. short: K. Chatterjee, R.J. Saona Urmeneta, B. Ziliotto, Mathematics of Operations Research 47 (2022) 100–119. date_created: 2021-04-08T09:33:31Z date_published: 2022-02-01T00:00:00Z date_updated: 2023-09-05T13:16:11Z day: '01' department: - _id: GradSch - _id: KrCh doi: 10.1287/moor.2020.1116 external_id: arxiv: - '1904.13360' isi: - '000731918100001' intvolume: ' 47' isi: 1 issue: '1' keyword: - Management Science and Operations Research - General Mathematics - Computer Science Applications language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1904.13360 month: '02' oa: 1 oa_version: Preprint page: 100-119 project: - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory publication: Mathematics of Operations Research publication_identifier: eissn: - 1526-5471 issn: - 0364-765X publication_status: published publisher: Institute for Operations Research and the Management Sciences quality_controlled: '1' scopus_import: '1' status: public title: Finite-memory strategies in POMDPs with long-run average objectives type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 47 year: '2022' ... --- _id: '9364' abstract: - lang: eng text: 'Let t : Fp → C be a complex valued function on Fp. A classical problem in analytic number theory is bounding the maximum M(t) := max 0≤H

0 there exists a large subset of a ∈ F×p such that for kl a,1,p : x → e((ax+x) / p) we have M(kla,1,p) ≥ (1−ε/√2π + o(1)) log log p, as p→∞. Finally, we prove a result on the growth of the moments of {M (kla,1,p)}a∈F×p. 2020 Mathematics Subject Classification: 11L03, 11T23 (Primary); 14F20, 60F10 (Secondary).' acknowledgement: I am most thankful to my advisor, Emmanuel Kowalski, for suggesting this problem and for his guidance during these years. I also would like to thank Youness Lamzouri for informing me about his work on sum of incomplete Birch sums and Tal Horesh for her suggestions on a previous version of the paper. Finally, I am very grateful to the anonymous referee for their careful reading of the manuscript and their valuable comments. article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Dante full_name: Bonolis, Dante id: 6A459894-5FDD-11E9-AF35-BB24E6697425 last_name: Bonolis citation: ama: Bonolis D. On the size of the maximum of incomplete Kloosterman sums. Mathematical Proceedings of the Cambridge Philosophical Society. 2022;172(3):563-590. doi:10.1017/S030500412100030X apa: Bonolis, D. (2022). On the size of the maximum of incomplete Kloosterman sums. Mathematical Proceedings of the Cambridge Philosophical Society. Cambridge University Press. https://doi.org/10.1017/S030500412100030X chicago: Bonolis, Dante. “On the Size of the Maximum of Incomplete Kloosterman Sums.” Mathematical Proceedings of the Cambridge Philosophical Society. Cambridge University Press, 2022. https://doi.org/10.1017/S030500412100030X. ieee: D. Bonolis, “On the size of the maximum of incomplete Kloosterman sums,” Mathematical Proceedings of the Cambridge Philosophical Society, vol. 172, no. 3. Cambridge University Press, pp. 563–590, 2022. ista: Bonolis D. 2022. On the size of the maximum of incomplete Kloosterman sums. Mathematical Proceedings of the Cambridge Philosophical Society. 172(3), 563–590. mla: Bonolis, Dante. “On the Size of the Maximum of Incomplete Kloosterman Sums.” Mathematical Proceedings of the Cambridge Philosophical Society, vol. 172, no. 3, Cambridge University Press, 2022, pp. 563–90, doi:10.1017/S030500412100030X. short: D. Bonolis, Mathematical Proceedings of the Cambridge Philosophical Society 172 (2022) 563–590. date_created: 2021-05-02T22:01:29Z date_published: 2022-05-01T00:00:00Z date_updated: 2023-08-02T06:47:48Z day: '01' ddc: - '510' department: - _id: TiBr doi: 10.1017/S030500412100030X external_id: arxiv: - '1811.10563' isi: - '000784421500001' file: - access_level: open_access checksum: 614d2e9b83a78100408e4ee7752a80a8 content_type: application/pdf creator: cchlebak date_created: 2021-12-01T14:01:54Z date_updated: 2021-12-01T14:01:54Z file_id: '10395' file_name: 2021_MathProcCamPhilSoc_Bonolis.pdf file_size: 334064 relation: main_file success: 1 file_date_updated: 2021-12-01T14:01:54Z has_accepted_license: '1' intvolume: ' 172' isi: 1 issue: '3' language: - iso: eng month: '05' oa: 1 oa_version: Published Version page: 563 - 590 publication: Mathematical Proceedings of the Cambridge Philosophical Society publication_identifier: eissn: - 1469-8064 issn: - 0305-0041 publication_status: published publisher: Cambridge University Press quality_controlled: '1' scopus_import: '1' status: public title: On the size of the maximum of incomplete Kloosterman sums tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 172 year: '2022' ... --- _id: '7577' abstract: - lang: eng text: Weak convergence of inertial iterative method for solving variational inequalities is the focus of this paper. The cost function is assumed to be non-Lipschitz and monotone. We propose a projection-type method with inertial terms and give weak convergence analysis under appropriate conditions. Some test results are performed and compared with relevant methods in the literature to show the efficiency and advantages given by our proposed methods. acknowledgement: The project of the first author has received funding from the European Research Council (ERC) under the European Union's Seventh Framework Program (FP7 - 2007-2013) (Grant agreement No. 616160). article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Yekini full_name: Shehu, Yekini id: 3FC7CB58-F248-11E8-B48F-1D18A9856A87 last_name: Shehu orcid: 0000-0001-9224-7139 - first_name: Olaniyi S. full_name: Iyiola, Olaniyi S. last_name: Iyiola citation: ama: Shehu Y, Iyiola OS. Weak convergence for variational inequalities with inertial-type method. Applicable Analysis. 2022;101(1):192-216. doi:10.1080/00036811.2020.1736287 apa: Shehu, Y., & Iyiola, O. S. (2022). Weak convergence for variational inequalities with inertial-type method. Applicable Analysis. Taylor & Francis. https://doi.org/10.1080/00036811.2020.1736287 chicago: Shehu, Yekini, and Olaniyi S. Iyiola. “Weak Convergence for Variational Inequalities with Inertial-Type Method.” Applicable Analysis. Taylor & Francis, 2022. https://doi.org/10.1080/00036811.2020.1736287. ieee: Y. Shehu and O. S. Iyiola, “Weak convergence for variational inequalities with inertial-type method,” Applicable Analysis, vol. 101, no. 1. Taylor & Francis, pp. 192–216, 2022. ista: Shehu Y, Iyiola OS. 2022. Weak convergence for variational inequalities with inertial-type method. Applicable Analysis. 101(1), 192–216. mla: Shehu, Yekini, and Olaniyi S. Iyiola. “Weak Convergence for Variational Inequalities with Inertial-Type Method.” Applicable Analysis, vol. 101, no. 1, Taylor & Francis, 2022, pp. 192–216, doi:10.1080/00036811.2020.1736287. short: Y. Shehu, O.S. Iyiola, Applicable Analysis 101 (2022) 192–216. date_created: 2020-03-09T07:06:52Z date_published: 2022-01-01T00:00:00Z date_updated: 2024-03-05T14:01:52Z day: '01' ddc: - '510' - '515' - '518' department: - _id: VlKo doi: 10.1080/00036811.2020.1736287 ec_funded: 1 external_id: arxiv: - '2101.08057' isi: - '000518364100001' file: - access_level: open_access checksum: 869efe8cb09505dfa6012f67d20db63d content_type: application/pdf creator: dernst date_created: 2020-10-12T10:42:54Z date_updated: 2021-03-16T23:30:06Z embargo: 2021-03-15 file_id: '8648' file_name: 2020_ApplicAnalysis_Shehu.pdf file_size: 4282586 relation: main_file file_date_updated: 2021-03-16T23:30:06Z has_accepted_license: '1' intvolume: ' 101' isi: 1 issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Submitted Version page: 192-216 project: - _id: 25FBA906-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '616160' name: 'Discrete Optimization in Computer Vision: Theory and Practice' publication: Applicable Analysis publication_identifier: eissn: - 1563-504X issn: - 0003-6811 publication_status: published publisher: Taylor & Francis quality_controlled: '1' scopus_import: '1' status: public title: Weak convergence for variational inequalities with inertial-type method type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 101 year: '2022' ... --- _id: '7791' abstract: - lang: eng text: Extending a result of Milena Radnovic and Serge Tabachnikov, we establish conditionsfor two different non-symmetric norms to define the same billiard reflection law. acknowledgement: AA was supported by European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 78818 Alpha). RK was supported by the Federal professorship program Grant 1.456.2016/1.4 and the Russian Foundation for Basic Research Grants 18-01-00036 and 19-01-00169. Open access funding provided by Institute of Science and Technology (IST Austria). The authors thank Alexey Balitskiy, Milena Radnović, and Serge Tabachnikov for useful discussions. article_processing_charge: Yes (via OA deal) article_type: original arxiv: 1 author: - first_name: Arseniy full_name: Akopyan, Arseniy id: 430D2C90-F248-11E8-B48F-1D18A9856A87 last_name: Akopyan orcid: 0000-0002-2548-617X - first_name: Roman full_name: Karasev, Roman last_name: Karasev citation: ama: Akopyan A, Karasev R. When different norms lead to same billiard trajectories? European Journal of Mathematics. 2022;8(4):1309-1312. doi:10.1007/s40879-020-00405-0 apa: Akopyan, A., & Karasev, R. (2022). When different norms lead to same billiard trajectories? European Journal of Mathematics. Springer Nature. https://doi.org/10.1007/s40879-020-00405-0 chicago: Akopyan, Arseniy, and Roman Karasev. “When Different Norms Lead to Same Billiard Trajectories?” European Journal of Mathematics. Springer Nature, 2022. https://doi.org/10.1007/s40879-020-00405-0. ieee: A. Akopyan and R. Karasev, “When different norms lead to same billiard trajectories?,” European Journal of Mathematics, vol. 8, no. 4. Springer Nature, pp. 1309–1312, 2022. ista: Akopyan A, Karasev R. 2022. When different norms lead to same billiard trajectories? European Journal of Mathematics. 8(4), 1309–1312. mla: Akopyan, Arseniy, and Roman Karasev. “When Different Norms Lead to Same Billiard Trajectories?” European Journal of Mathematics, vol. 8, no. 4, Springer Nature, 2022, pp. 1309–12, doi:10.1007/s40879-020-00405-0. short: A. Akopyan, R. Karasev, European Journal of Mathematics 8 (2022) 1309–1312. date_created: 2020-05-03T22:00:48Z date_published: 2022-12-01T00:00:00Z date_updated: 2024-02-22T15:58:42Z day: '01' ddc: - '510' department: - _id: HeEd doi: 10.1007/s40879-020-00405-0 ec_funded: 1 external_id: arxiv: - '1912.12685' file: - access_level: open_access checksum: f53e71fd03744075adcd0b8fc1b8423d content_type: application/pdf creator: dernst date_created: 2020-05-04T10:33:42Z date_updated: 2020-07-14T12:48:03Z file_id: '7796' file_name: 2020_EuropMathematics_Akopyan.pdf file_size: 263926 relation: main_file file_date_updated: 2020-07-14T12:48:03Z has_accepted_license: '1' intvolume: ' 8' issue: '4' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: 1309 - 1312 project: - _id: 266A2E9E-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '788183' name: Alpha Shape Theory Extended - _id: B67AFEDC-15C9-11EA-A837-991A96BB2854 name: IST Austria Open Access Fund publication: European Journal of Mathematics publication_identifier: eissn: - 2199-6768 issn: - 2199-675X publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: When different norms lead to same billiard trajectories? tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2022' ... --- _id: '8125' abstract: - lang: eng text: Context, such as behavioral state, is known to modulate memory formation and retrieval, but is usually ignored in associative memory models. Here, we propose several types of contextual modulation for associative memory networks that greatly increase their performance. In these networks, context inactivates specific neurons and connections, which modulates the effective connectivity of the network. Memories are stored only by the active components, thereby reducing interference from memories acquired in other contexts. Such networks exhibit several beneficial characteristics, including enhanced memory capacity, high robustness to noise, increased robustness to memory overloading, and better memory retention during continual learning. Furthermore, memories can be biased to have different relative strengths, or even gated on or off, according to contextual cues, providing a candidate model for cognitive control of memory and efficient memory search. An external context-encoding network can dynamically switch the memory network to a desired state, which we liken to experimentally observed contextual signals in prefrontal cortex and hippocampus. Overall, our work illustrates the benefits of organizing memory around context, and provides an important link between behavioral studies of memory and mechanistic details of neural circuits.SIGNIFICANCEMemory is context dependent — both encoding and recall vary in effectiveness and speed depending on factors like location and brain state during a task. We apply this idea to a simple computational model of associative memory through contextual gating of neurons and synaptic connections. Intriguingly, this results in several advantages, including vastly enhanced memory capacity, better robustness, and flexible memory gating. Our model helps to explain (i) how gating and inhibition contribute to memory processes, (ii) how memory access dynamically changes over time, and (iii) how context representations, such as those observed in hippocampus and prefrontal cortex, may interact with and control memory processes. article_processing_charge: No author: - first_name: William F. full_name: Podlaski, William F. last_name: Podlaski orcid: 0000-0001-6619-7502 - first_name: Everton J. full_name: Agnes, Everton J. last_name: Agnes orcid: 0000-0001-7184-7311 - first_name: Tim P full_name: Vogels, Tim P id: CB6FF8D2-008F-11EA-8E08-2637E6697425 last_name: Vogels orcid: 0000-0003-3295-6181 citation: ama: Podlaski WF, Agnes EJ, Vogels TP. High capacity and dynamic accessibility in associative memory networks with context-dependent neuronal and synaptic gating. bioRxiv. 2022. doi:10.1101/2020.01.08.898528 apa: Podlaski, W. F., Agnes, E. J., & Vogels, T. P. (2022). High capacity and dynamic accessibility in associative memory networks with context-dependent neuronal and synaptic gating. bioRxiv. Cold Spring Harbor Laboratory. https://doi.org/10.1101/2020.01.08.898528 chicago: Podlaski, William F., Everton J. Agnes, and Tim P Vogels. “High Capacity and Dynamic Accessibility in Associative Memory Networks with Context-Dependent Neuronal and Synaptic Gating.” BioRxiv. Cold Spring Harbor Laboratory, 2022. https://doi.org/10.1101/2020.01.08.898528. ieee: W. F. Podlaski, E. J. Agnes, and T. P. Vogels, “High capacity and dynamic accessibility in associative memory networks with context-dependent neuronal and synaptic gating,” bioRxiv. Cold Spring Harbor Laboratory, 2022. ista: Podlaski WF, Agnes EJ, Vogels TP. 2022. High capacity and dynamic accessibility in associative memory networks with context-dependent neuronal and synaptic gating. bioRxiv, 10.1101/2020.01.08.898528. mla: Podlaski, William F., et al. “High Capacity and Dynamic Accessibility in Associative Memory Networks with Context-Dependent Neuronal and Synaptic Gating.” BioRxiv, Cold Spring Harbor Laboratory, 2022, doi:10.1101/2020.01.08.898528. short: W.F. Podlaski, E.J. Agnes, T.P. Vogels, BioRxiv (2022). date_created: 2020-07-16T12:24:28Z date_published: 2022-12-21T00:00:00Z date_updated: 2024-03-06T12:03:59Z day: '21' department: - _id: TiVo doi: 10.1101/2020.01.08.898528 language: - iso: eng locked: '1' main_file_link: - open_access: '1' url: 'https://doi.org/10.1101/2020.01.08.898528 ' month: '12' oa: 1 oa_version: Preprint publication: bioRxiv publication_status: published publisher: Cold Spring Harbor Laboratory status: public title: High capacity and dynamic accessibility in associative memory networks with context-dependent neuronal and synaptic gating type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2022' ... --- _id: '13445' abstract: - lang: eng text: Rotation is typically assumed to induce strictly symmetric rotational splitting into the rotational multiplets of pure p- and g-modes. However, for evolved stars exhibiting mixed modes, avoided crossings between different multiplet components are known to yield asymmetric rotational splitting, in particular for near-degenerate mixed-mode pairs, where notional pure p-modes are fortuitously in resonance with pure g-modes. These near-degeneracy effects have been described in subgiants, but their consequences for the characterization of internal rotation in red giants have not previously been investigated in detail, in part owing to theoretical intractability. We employ new developments in the analytic theory of mixed-mode coupling to study these near-resonance phenomena. In the vicinity of the most p-dominated mixed modes, the near-degenerate intrinsic asymmetry from pure rotational splitting increases dramatically over the course of stellar evolution, and it depends strongly on the mode-mixing fraction ζ. We also find that a linear treatment of rotation remains viable for describing the underlying p- and g-modes, even when it does not for the resulting mixed modes undergoing these avoided crossings. We explore observational consequences for potential measurements of asymmetric mixed-mode splitting, which has been proposed as a magnetic-field diagnostic. Finally, we propose improved measurement techniques for rotational characterization, exploiting the linearity of rotational effects on the underlying p/g-modes, while still accounting for these mixed-mode coupling effects. article_number: '18' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: J. M. Joel full_name: Ong, J. M. Joel last_name: Ong - first_name: Lisa Annabelle full_name: Bugnet, Lisa Annabelle id: d9edb345-f866-11ec-9b37-d119b5234501 last_name: Bugnet orcid: 0000-0003-0142-4000 - first_name: Sarbani full_name: Basu, Sarbani last_name: Basu citation: ama: Ong JMJ, Bugnet LA, Basu S. Mode mixing and rotational splittings. I. Near-degeneracy effects revisited. The Astrophysical Journal. 2022;940(1). doi:10.3847/1538-4357/ac97e7 apa: Ong, J. M. J., Bugnet, L. A., & Basu, S. (2022). Mode mixing and rotational splittings. I. Near-degeneracy effects revisited. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ac97e7 chicago: Ong, J. M. Joel, Lisa Annabelle Bugnet, and Sarbani Basu. “Mode Mixing and Rotational Splittings. I. Near-Degeneracy Effects Revisited.” The Astrophysical Journal. American Astronomical Society, 2022. https://doi.org/10.3847/1538-4357/ac97e7. ieee: J. M. J. Ong, L. A. Bugnet, and S. Basu, “Mode mixing and rotational splittings. I. Near-degeneracy effects revisited,” The Astrophysical Journal, vol. 940, no. 1. American Astronomical Society, 2022. ista: Ong JMJ, Bugnet LA, Basu S. 2022. Mode mixing and rotational splittings. I. Near-degeneracy effects revisited. The Astrophysical Journal. 940(1), 18. mla: Ong, J. M. Joel, et al. “Mode Mixing and Rotational Splittings. I. Near-Degeneracy Effects Revisited.” The Astrophysical Journal, vol. 940, no. 1, 18, American Astronomical Society, 2022, doi:10.3847/1538-4357/ac97e7. short: J.M.J. Ong, L.A. Bugnet, S. Basu, The Astrophysical Journal 940 (2022). date_created: 2023-08-01T14:20:41Z date_published: 2022-11-16T00:00:00Z date_updated: 2023-09-06T07:27:45Z day: '16' doi: 10.3847/1538-4357/ac97e7 extern: '1' external_id: arxiv: - '2210.01928' intvolume: ' 940' issue: '1' keyword: - Space and Planetary Science - Astronomy and Astrophysics language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2210.01928 month: '11' oa: 1 oa_version: Published Version publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: American Astronomical Society quality_controlled: '1' scopus_import: '1' status: public title: Mode mixing and rotational splittings. I. Near-degeneracy effects revisited type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 940 year: '2022' ... --- _id: '13451' abstract: - lang: eng text: 'We characterize massive stars (M > 8 M⊙) in the nearby (D ∼ 0.8 Mpc) extremely metal-poor (Z ∼ 5% Z⊙) galaxy Leo A using Hubble Space Telescope ultraviolet (UV), optical, and near-infrared (NIR) imaging along with Keck/Low-Resolution Imaging Spectrograph and MMT/Binospec optical spectroscopy for 18 main-sequence OB stars. We find that: (a) 12 of our 18 stars show emission lines, despite not being associated with an H ii region, suggestive of stellar activity (e.g., mass loss, accretion, binary star interaction), which is consistent with previous predictions of enhanced activity at low metallicity; (b) six are Be stars, which are the first to be spectroscopically studied at such low metallicity—these Be stars have unusual panchromatic SEDs; (c) for stars well fit by the TLUSTY nonlocal thermodynamic equilibrium models, the photometric and spectroscopic values of $\mathrm{log}({T}_{\mathrm{eff}})$ and $\mathrm{log}(g)$ agree to within ∼0.01 dex and ∼0.18 dex, respectively, indicating that near-UV/optical/NIR imaging can be used to reliably characterize massive (M ∼ 8–30 M⊙) main-sequence star properties relative to optical spectroscopy; (d) the properties of the most-massive stars in H II regions are consistent with constraints from previous nebular emission line studies; and (e) 13 stars with M > 8M⊙ are >40 pc from a known star cluster or H II region. Our sample comprises ∼50% of all known massive stars at Z ≲ 10% Z⊙with derived stellar parameters, high-quality optical spectra, and panchromatic photometry.' article_number: '206' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Maude full_name: Gull, Maude last_name: Gull - first_name: Daniel R. full_name: Weisz, Daniel R. last_name: Weisz - first_name: Peter full_name: Senchyna, Peter last_name: Senchyna - first_name: Nathan R. full_name: Sandford, Nathan R. last_name: Sandford - first_name: Yumi full_name: Choi, Yumi last_name: Choi - first_name: Anna F. full_name: McLeod, Anna F. last_name: McLeod - first_name: Kareem full_name: El-Badry, Kareem last_name: El-Badry - first_name: Ylva Louise Linsdotter full_name: Götberg, Ylva Louise Linsdotter id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d last_name: Götberg orcid: 0000-0002-6960-6911 - first_name: Karoline M. full_name: Gilbert, Karoline M. last_name: Gilbert - first_name: Martha full_name: Boyer, Martha last_name: Boyer - first_name: Julianne J. full_name: Dalcanton, Julianne J. last_name: Dalcanton - first_name: Puragra full_name: GuhaThakurta, Puragra last_name: GuhaThakurta - first_name: Steven full_name: Goldman, Steven last_name: Goldman - first_name: Paola full_name: Marigo, Paola last_name: Marigo - first_name: Kristen B. W. full_name: McQuinn, Kristen B. W. last_name: McQuinn - first_name: Giada full_name: Pastorelli, Giada last_name: Pastorelli - first_name: Daniel P. full_name: Stark, Daniel P. last_name: Stark - first_name: Evan full_name: Skillman, Evan last_name: Skillman - first_name: Yuan-sen full_name: Ting, Yuan-sen last_name: Ting - first_name: Benjamin F. full_name: Williams, Benjamin F. last_name: Williams citation: ama: Gull M, Weisz DR, Senchyna P, et al. A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A. The Astrophysical Journal. 2022;941(2). doi:10.3847/1538-4357/aca295 apa: Gull, M., Weisz, D. R., Senchyna, P., Sandford, N. R., Choi, Y., McLeod, A. F., … Williams, B. F. (2022). A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/aca295 chicago: Gull, Maude, Daniel R. Weisz, Peter Senchyna, Nathan R. Sandford, Yumi Choi, Anna F. McLeod, Kareem El-Badry, et al. “A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A.” The Astrophysical Journal. American Astronomical Society, 2022. https://doi.org/10.3847/1538-4357/aca295. ieee: M. Gull et al., “A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A,” The Astrophysical Journal, vol. 941, no. 2. American Astronomical Society, 2022. ista: Gull M, Weisz DR, Senchyna P, Sandford NR, Choi Y, McLeod AF, El-Badry K, Götberg YLL, Gilbert KM, Boyer M, Dalcanton JJ, GuhaThakurta P, Goldman S, Marigo P, McQuinn KBW, Pastorelli G, Stark DP, Skillman E, Ting Y, Williams BF. 2022. A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A. The Astrophysical Journal. 941(2), 206. mla: Gull, Maude, et al. “A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A.” The Astrophysical Journal, vol. 941, no. 2, 206, American Astronomical Society, 2022, doi:10.3847/1538-4357/aca295. short: M. Gull, D.R. Weisz, P. Senchyna, N.R. Sandford, Y. Choi, A.F. McLeod, K. El-Badry, Y.L.L. Götberg, K.M. Gilbert, M. Boyer, J.J. Dalcanton, P. GuhaThakurta, S. Goldman, P. Marigo, K.B.W. McQuinn, G. Pastorelli, D.P. Stark, E. Skillman, Y. Ting, B.F. Williams, The Astrophysical Journal 941 (2022). date_created: 2023-08-03T10:10:25Z date_published: 2022-12-27T00:00:00Z date_updated: 2023-08-21T12:04:58Z day: '27' doi: 10.3847/1538-4357/aca295 extern: '1' external_id: arxiv: - '2211.14349' intvolume: ' 941' issue: '2' keyword: - Space and Planetary Science - Astronomy and Astrophysics language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3847/1538-4357/aca295 month: '12' oa: 1 oa_version: Published Version publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: American Astronomical Society quality_controlled: '1' scopus_import: '1' status: public title: A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 941 year: '2022' ... --- _id: '13452' abstract: - lang: eng text: Magnetic fields can drastically change predictions of evolutionary models of massive stars via mass-loss quenching, magnetic braking, and efficient angular momentum transport, which we aim to quantify in this work. We use the MESA software instrument to compute an extensive main-sequence grid of stellar structure and evolution models, as well as isochrones, accounting for the effects attributed to a surface fossil magnetic field. The grid is densely populated in initial mass (3–60 M⊙), surface equatorial magnetic field strength (0–50 kG), and metallicity (representative of the Solar neighbourhood and the Magellanic Clouds). We use two magnetic braking and two chemical mixing schemes and compare the model predictions for slowly rotating, nitrogen-enriched (‘Group 2’) stars with observations in the Large Magellanic Cloud. We quantify a range of initial field strengths that allow for producing Group 2 stars and find that typical values (up to a few kG) lead to solutions. Between the subgrids, we find notable departures in surface abundances and evolutionary paths. In our magnetic models, chemical mixing is always less efficient compared to non-magnetic models due to the rapid spin-down. We identify that quasi-chemically homogeneous main sequence evolution by efficient mixing could be prevented by fossil magnetic fields. We recommend comparing this grid of evolutionary models with spectropolarimetric and spectroscopic observations with the goals of (i) revisiting the derived stellar parameters of known magnetic stars, and (ii) observationally constraining the uncertain magnetic braking and chemical mixing schemes. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Z full_name: Keszthelyi, Z last_name: Keszthelyi - first_name: A full_name: de Koter, A last_name: de Koter - first_name: Ylva Louise Linsdotter full_name: Götberg, Ylva Louise Linsdotter id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d last_name: Götberg orcid: 0000-0002-6960-6911 - first_name: G full_name: Meynet, G last_name: Meynet - first_name: S A full_name: Brands, S A last_name: Brands - first_name: V full_name: Petit, V last_name: Petit - first_name: M full_name: Carrington, M last_name: Carrington - first_name: A full_name: David-Uraz, A last_name: David-Uraz - first_name: S T full_name: Geen, S T last_name: Geen - first_name: C full_name: Georgy, C last_name: Georgy - first_name: R full_name: Hirschi, R last_name: Hirschi - first_name: J full_name: Puls, J last_name: Puls - first_name: K J full_name: Ramalatswa, K J last_name: Ramalatswa - first_name: M E full_name: Shultz, M E last_name: Shultz - first_name: A full_name: ud-Doula, A last_name: ud-Doula citation: ama: 'Keszthelyi Z, de Koter A, Götberg YLL, et al. The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities. Monthly Notices of the Royal Astronomical Society. 2022;517(2):2028-2055. doi:10.1093/mnras/stac2598' apa: 'Keszthelyi, Z., de Koter, A., Götberg, Y. L. L., Meynet, G., Brands, S. A., Petit, V., … ud-Doula, A. (2022). The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stac2598' chicago: 'Keszthelyi, Z, A de Koter, Ylva Louise Linsdotter Götberg, G Meynet, S A Brands, V Petit, M Carrington, et al. “The Effects of Surface Fossil Magnetic Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac2598.' ieee: 'Z. Keszthelyi et al., “The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities,” Monthly Notices of the Royal Astronomical Society, vol. 517, no. 2. Oxford University Press, pp. 2028–2055, 2022.' ista: 'Keszthelyi Z, de Koter A, Götberg YLL, Meynet G, Brands SA, Petit V, Carrington M, David-Uraz A, Geen ST, Georgy C, Hirschi R, Puls J, Ramalatswa KJ, Shultz ME, ud-Doula A. 2022. The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities. Monthly Notices of the Royal Astronomical Society. 517(2), 2028–2055.' mla: 'Keszthelyi, Z., et al. “The Effects of Surface Fossil Magnetic Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” Monthly Notices of the Royal Astronomical Society, vol. 517, no. 2, Oxford University Press, 2022, pp. 2028–55, doi:10.1093/mnras/stac2598.' short: Z. Keszthelyi, A. de Koter, Y.L.L. Götberg, G. Meynet, S.A. Brands, V. Petit, M. Carrington, A. David-Uraz, S.T. Geen, C. Georgy, R. Hirschi, J. Puls, K.J. Ramalatswa, M.E. Shultz, A. ud-Doula, Monthly Notices of the Royal Astronomical Society 517 (2022) 2028–2055. date_created: 2023-08-03T10:10:37Z date_published: 2022-12-01T00:00:00Z date_updated: 2023-08-21T12:02:17Z day: '01' doi: 10.1093/mnras/stac2598 extern: '1' external_id: arxiv: - '2209.06350' intvolume: ' 517' issue: '2' keyword: - Space and Planetary Science - Astronomy and Astrophysics language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2209.06350 month: '12' oa: 1 oa_version: Preprint page: 2028-2055 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 517 year: '2022' ... --- _id: '13991' abstract: - lang: eng text: The prediction and realization of topological insulators have sparked great interest in experimental approaches to the classification of materials1,2,3. The phase transition between non-trivial and trivial topological states is important, not only for basic materials science but also for next-generation technology, such as dissipation-free electronics4. It is therefore crucial to develop advanced probes that are suitable for a wide range of samples and environments. Here we demonstrate that circularly polarized laser-field-driven high-harmonic generation is distinctly sensitive to the non-trivial and trivial topological phases in the prototypical three-dimensional topological insulator bismuth selenide5. The phase transition is chemically initiated by reducing the spin–orbit interaction strength through the substitution of bismuth with indium atoms6,7. We find strikingly different high-harmonic responses of trivial and non-trivial topological surface states that manifest themselves as a conversion efficiency and elliptical dichroism that depend both on the driving laser ellipticity and the crystal orientation. The origins of the anomalous high-harmonic response are corroborated by calculations using the semiconductor optical Bloch equations with pairs of surface and bulk bands. As a purely optical approach, this method offers sensitivity to the electronic structure of the material, including its nonlinear response, and is compatible with a wide range of samples and sample environments. article_processing_charge: No article_type: original author: - first_name: Christian full_name: Heide, Christian last_name: Heide - first_name: Yuki full_name: Kobayashi, Yuki last_name: Kobayashi - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: Deepti full_name: Jain, Deepti last_name: Jain - first_name: Jonathan A. full_name: Sobota, Jonathan A. last_name: Sobota - first_name: Makoto full_name: Hashimoto, Makoto last_name: Hashimoto - first_name: Patrick S. full_name: Kirchmann, Patrick S. last_name: Kirchmann - first_name: Seongshik full_name: Oh, Seongshik last_name: Oh - first_name: Tony F. full_name: Heinz, Tony F. last_name: Heinz - first_name: David A. full_name: Reis, David A. last_name: Reis - first_name: Shambhu full_name: Ghimire, Shambhu last_name: Ghimire citation: ama: Heide C, Kobayashi Y, Baykusheva DR, et al. Probing topological phase transitions using high-harmonic generation. Nature Photonics. 2022;16(9):620-624. doi:10.1038/s41566-022-01050-7 apa: Heide, C., Kobayashi, Y., Baykusheva, D. R., Jain, D., Sobota, J. A., Hashimoto, M., … Ghimire, S. (2022). Probing topological phase transitions using high-harmonic generation. Nature Photonics. Springer Nature. https://doi.org/10.1038/s41566-022-01050-7 chicago: Heide, Christian, Yuki Kobayashi, Denitsa Rangelova Baykusheva, Deepti Jain, Jonathan A. Sobota, Makoto Hashimoto, Patrick S. Kirchmann, et al. “Probing Topological Phase Transitions Using High-Harmonic Generation.” Nature Photonics. Springer Nature, 2022. https://doi.org/10.1038/s41566-022-01050-7. ieee: C. Heide et al., “Probing topological phase transitions using high-harmonic generation,” Nature Photonics, vol. 16, no. 9. Springer Nature, pp. 620–624, 2022. ista: Heide C, Kobayashi Y, Baykusheva DR, Jain D, Sobota JA, Hashimoto M, Kirchmann PS, Oh S, Heinz TF, Reis DA, Ghimire S. 2022. Probing topological phase transitions using high-harmonic generation. Nature Photonics. 16(9), 620–624. mla: Heide, Christian, et al. “Probing Topological Phase Transitions Using High-Harmonic Generation.” Nature Photonics, vol. 16, no. 9, Springer Nature, 2022, pp. 620–24, doi:10.1038/s41566-022-01050-7. short: C. Heide, Y. Kobayashi, D.R. Baykusheva, D. Jain, J.A. Sobota, M. Hashimoto, P.S. Kirchmann, S. Oh, T.F. Heinz, D.A. Reis, S. Ghimire, Nature Photonics 16 (2022) 620–624. date_created: 2023-08-09T13:07:51Z date_published: 2022-09-01T00:00:00Z date_updated: 2023-08-22T07:20:09Z day: '01' doi: 10.1038/s41566-022-01050-7 extern: '1' intvolume: ' 16' issue: '9' keyword: - Atomic and Molecular Physics - and Optics - Electronic - Optical and Magnetic Materials language: - iso: eng month: '09' oa_version: None page: 620-624 publication: Nature Photonics publication_identifier: eissn: - 1749-4893 issn: - 1749-4885 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Probing topological phase transitions using high-harmonic generation type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 16 year: '2022' ... --- _id: '13992' abstract: - lang: eng text: Understanding the chirality of molecular reaction pathways is essential for a broad range of fundamental and applied sciences. However, the current ability to probe chirality on the time scale of primary processes underlying chemical reactions remains very limited. Here, we demonstrate time-resolved photoelectron circular dichroism (TRPECD) with ultrashort circularly polarized vacuum-ultraviolet (VUV) pulses from a tabletop source. We demonstrate the capabilities of VUV-TRPECD by resolving the chirality changes in time during the photodissociation of atomic iodine from two chiral molecules. We identify several general key features of TRPECD, which include the ability to probe dynamical chirality along the complete photochemical reaction path, the sensitivity to the local chirality of the evolving scattering potential, and the influence of electron scattering off dissociating photofragments. Our results are interpreted by comparison with high-level ab-initio calculations of transient PECDs from molecular photoionization calculations. Our experimental and theoretical techniques define a general approach to femtochirality. article_number: abq2811 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Vít full_name: Svoboda, Vít last_name: Svoboda - first_name: Niraghatam Bhargava full_name: Ram, Niraghatam Bhargava last_name: Ram - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: Daniel full_name: Zindel, Daniel last_name: Zindel - first_name: Max D. J. full_name: Waters, Max D. J. last_name: Waters - first_name: Benjamin full_name: Spenger, Benjamin last_name: Spenger - first_name: Manuel full_name: Ochsner, Manuel last_name: Ochsner - first_name: Holger full_name: Herburger, Holger last_name: Herburger - first_name: Jürgen full_name: Stohner, Jürgen last_name: Stohner - first_name: Hans Jakob full_name: Wörner, Hans Jakob last_name: Wörner citation: ama: Svoboda V, Ram NB, Baykusheva DR, et al. Femtosecond photoelectron circular dichroism of chemical reactions. Science Advances. 2022;8(28). doi:10.1126/sciadv.abq2811 apa: Svoboda, V., Ram, N. B., Baykusheva, D. R., Zindel, D., Waters, M. D. J., Spenger, B., … Wörner, H. J. (2022). Femtosecond photoelectron circular dichroism of chemical reactions. Science Advances. American Association for the Advancement of Science. https://doi.org/10.1126/sciadv.abq2811 chicago: Svoboda, Vít, Niraghatam Bhargava Ram, Denitsa Rangelova Baykusheva, Daniel Zindel, Max D. J. Waters, Benjamin Spenger, Manuel Ochsner, Holger Herburger, Jürgen Stohner, and Hans Jakob Wörner. “Femtosecond Photoelectron Circular Dichroism of Chemical Reactions.” Science Advances. American Association for the Advancement of Science, 2022. https://doi.org/10.1126/sciadv.abq2811. ieee: V. Svoboda et al., “Femtosecond photoelectron circular dichroism of chemical reactions,” Science Advances, vol. 8, no. 28. American Association for the Advancement of Science, 2022. ista: Svoboda V, Ram NB, Baykusheva DR, Zindel D, Waters MDJ, Spenger B, Ochsner M, Herburger H, Stohner J, Wörner HJ. 2022. Femtosecond photoelectron circular dichroism of chemical reactions. Science Advances. 8(28), abq2811. mla: Svoboda, Vít, et al. “Femtosecond Photoelectron Circular Dichroism of Chemical Reactions.” Science Advances, vol. 8, no. 28, abq2811, American Association for the Advancement of Science, 2022, doi:10.1126/sciadv.abq2811. short: V. Svoboda, N.B. Ram, D.R. Baykusheva, D. Zindel, M.D.J. Waters, B. Spenger, M. Ochsner, H. Herburger, J. Stohner, H.J. Wörner, Science Advances 8 (2022). date_created: 2023-08-09T13:08:04Z date_published: 2022-07-15T00:00:00Z date_updated: 2023-08-22T07:24:01Z day: '15' doi: 10.1126/sciadv.abq2811 extern: '1' external_id: arxiv: - '2206.04099' pmid: - '35857523' intvolume: ' 8' issue: '28' keyword: - Multidisciplinary language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1126/sciadv.abq2811 month: '07' oa: 1 oa_version: Published Version pmid: 1 publication: Science Advances publication_identifier: eissn: - 2375-2548 publication_status: published publisher: American Association for the Advancement of Science quality_controlled: '1' scopus_import: '1' status: public title: Femtosecond photoelectron circular dichroism of chemical reactions type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2022' ... --- _id: '13993' abstract: - lang: eng text: Photoionization is a process taking place on attosecond time scales. How its properties evolve from isolated particles to the condensed phase is an open question of both fundamental and practical relevance. Here, we review recent work that has advanced the study of photoionization dynamics from atoms to molecules, clusters and the liquid phase. The first measurements of molecular photoionization delays have revealed the attosecond dynamics of electron emission from a molecular shape resonance and their sensitivity to the molecular potential. Using electron-ion coincidence spectroscopy these measurements have been extended from isolated molecules to clusters. A continuous increase of the delays with the water-cluster size has been observed up to a size of 4-5 molecules, followed by a saturation towards larger clusters. Comparison with calculations has revealed a correlation of the time delay with the spatial extension of the created electron hole. Using cylindrical liquid-microjet techniques, these measurements have also been extended to liquid water, revealing a delay relative to isolated water molecules that was very similar to the largest water clusters studied. Detailed modeling based on Monte-Carlo simulations confirmed that these delays are dominated by the contributions of the first two solvation shells, which agrees with the results of the cluster measurements. These combined results open the perspective of experimentally characterizing the delocalization of electronic wave functions in complex systems and studying their evolution on attosecond time scales. article_processing_charge: No article_type: original author: - first_name: Xiaochun full_name: Gong, Xiaochun last_name: Gong - first_name: Inga full_name: Jordan, Inga last_name: Jordan - first_name: Martin full_name: Huppert, Martin last_name: Huppert - first_name: Saijoscha full_name: Heck, Saijoscha last_name: Heck - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: Denis full_name: Jelovina, Denis last_name: Jelovina - first_name: Axel full_name: Schild, Axel last_name: Schild - first_name: Hans Jakob full_name: Wörner, Hans Jakob last_name: Wörner citation: ama: 'Gong X, Jordan I, Huppert M, et al. Attosecond photoionization dynamics: from molecules over clusters to the liquid phase. Chimia. 2022;76(6):520-528. doi:10.2533/chimia.2022.520' apa: 'Gong, X., Jordan, I., Huppert, M., Heck, S., Baykusheva, D. R., Jelovina, D., … Wörner, H. J. (2022). Attosecond photoionization dynamics: from molecules over clusters to the liquid phase. Chimia. Swiss Chemical Society. https://doi.org/10.2533/chimia.2022.520' chicago: 'Gong, Xiaochun, Inga Jordan, Martin Huppert, Saijoscha Heck, Denitsa Rangelova Baykusheva, Denis Jelovina, Axel Schild, and Hans Jakob Wörner. “Attosecond Photoionization Dynamics: From Molecules over Clusters to the Liquid Phase.” Chimia. Swiss Chemical Society, 2022. https://doi.org/10.2533/chimia.2022.520.' ieee: 'X. Gong et al., “Attosecond photoionization dynamics: from molecules over clusters to the liquid phase,” Chimia, vol. 76, no. 6. Swiss Chemical Society, pp. 520–528, 2022.' ista: 'Gong X, Jordan I, Huppert M, Heck S, Baykusheva DR, Jelovina D, Schild A, Wörner HJ. 2022. Attosecond photoionization dynamics: from molecules over clusters to the liquid phase. Chimia. 76(6), 520–528.' mla: 'Gong, Xiaochun, et al. “Attosecond Photoionization Dynamics: From Molecules over Clusters to the Liquid Phase.” Chimia, vol. 76, no. 6, Swiss Chemical Society, 2022, pp. 520–28, doi:10.2533/chimia.2022.520.' short: X. Gong, I. Jordan, M. Huppert, S. Heck, D.R. Baykusheva, D. Jelovina, A. Schild, H.J. Wörner, Chimia 76 (2022) 520–528. date_created: 2023-08-09T13:08:15Z date_published: 2022-06-29T00:00:00Z date_updated: 2023-08-22T07:26:39Z day: '29' doi: 10.2533/chimia.2022.520 extern: '1' intvolume: ' 76' issue: '6' keyword: - General Medicine - General Chemistry language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.2533/chimia.2022.520 month: '06' oa: 1 oa_version: Published Version page: 520-528 publication: Chimia publication_identifier: eissn: - 2673-2424 issn: - 0009-4293 publication_status: published publisher: Swiss Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Attosecond photoionization dynamics: from molecules over clusters to the liquid phase' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 76 year: '2022' ... --- _id: '13994' abstract: - lang: eng text: "Ultrafast lasers are an increasingly important tool to control and stabilize emergent phases in quantum materials. Among a variety of possible excitation protocols, a particularly intriguing route is the direct light engineering of microscopic electronic parameters, such as the electron hopping and the local Coulomb repulsion (Hubbard \r\nU). In this work, we use time-resolved x-ray absorption spectroscopy to demonstrate the light-induced renormalization of the Hubbard U in a cuprate superconductor, La1.905Ba0.095CuO4. We show that intense femtosecond laser pulses induce a substantial redshift of the upper Hubbard band while leaving the Zhang-Rice singlet energy unaffected. By comparing the experimental data to time-dependent spectra of single- and three-band Hubbard models, we assign this effect to an approximately 140-meV reduction of the on-site Coulomb repulsion on the copper sites. Our demonstration of a dynamical Hubbard U renormalization in a copper oxide paves the way to a novel strategy for the manipulation of superconductivity and magnetism as well as to the realization of other long-range-ordered phases in light-driven quantum materials." article_number: '011013' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: Hoyoung full_name: Jang, Hoyoung last_name: Jang - first_name: Ali A. full_name: Husain, Ali A. last_name: Husain - first_name: Sangjun full_name: Lee, Sangjun last_name: Lee - first_name: Sophia F. R. full_name: TenHuisen, Sophia F. R. last_name: TenHuisen - first_name: Preston full_name: Zhou, Preston last_name: Zhou - first_name: Sunwook full_name: Park, Sunwook last_name: Park - first_name: Hoon full_name: Kim, Hoon last_name: Kim - first_name: Jin-Kwang full_name: Kim, Jin-Kwang last_name: Kim - first_name: Hyeong-Do full_name: Kim, Hyeong-Do last_name: Kim - first_name: Minseok full_name: Kim, Minseok last_name: Kim - first_name: Sang-Youn full_name: Park, Sang-Youn last_name: Park - first_name: Peter full_name: Abbamonte, Peter last_name: Abbamonte - first_name: B. J. full_name: Kim, B. J. last_name: Kim - first_name: G. D. full_name: Gu, G. D. last_name: Gu - first_name: Yao full_name: Wang, Yao last_name: Wang - first_name: Matteo full_name: Mitrano, Matteo last_name: Mitrano citation: ama: Baykusheva DR, Jang H, Husain AA, et al. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. Physical Review X. 2022;12(1). doi:10.1103/physrevx.12.011013 apa: Baykusheva, D. R., Jang, H., Husain, A. A., Lee, S., TenHuisen, S. F. R., Zhou, P., … Mitrano, M. (2022). Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. Physical Review X. American Physical Society. https://doi.org/10.1103/physrevx.12.011013 chicago: Baykusheva, Denitsa Rangelova, Hoyoung Jang, Ali A. Husain, Sangjun Lee, Sophia F. R. TenHuisen, Preston Zhou, Sunwook Park, et al. “Ultrafast Renormalization of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” Physical Review X. American Physical Society, 2022. https://doi.org/10.1103/physrevx.12.011013. ieee: D. R. Baykusheva et al., “Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor,” Physical Review X, vol. 12, no. 1. American Physical Society, 2022. ista: Baykusheva DR, Jang H, Husain AA, Lee S, TenHuisen SFR, Zhou P, Park S, Kim H, Kim J-K, Kim H-D, Kim M, Park S-Y, Abbamonte P, Kim BJ, Gu GD, Wang Y, Mitrano M. 2022. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. Physical Review X. 12(1), 011013. mla: Baykusheva, Denitsa Rangelova, et al. “Ultrafast Renormalization of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” Physical Review X, vol. 12, no. 1, 011013, American Physical Society, 2022, doi:10.1103/physrevx.12.011013. short: D.R. Baykusheva, H. Jang, A.A. Husain, S. Lee, S.F.R. TenHuisen, P. Zhou, S. Park, H. Kim, J.-K. Kim, H.-D. Kim, M. Kim, S.-Y. Park, P. Abbamonte, B.J. Kim, G.D. Gu, Y. Wang, M. Mitrano, Physical Review X 12 (2022). date_created: 2023-08-09T13:08:26Z date_published: 2022-01-20T00:00:00Z date_updated: 2023-08-22T07:28:38Z day: '20' doi: 10.1103/physrevx.12.011013 extern: '1' external_id: arxiv: - '2109.13229' intvolume: ' 12' issue: '1' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1103/PhysRevX.12.011013 month: '01' oa: 1 oa_version: Published Version publication: Physical Review X publication_identifier: eissn: - 2160-3308 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 12 year: '2022' ...