[{"date_published":"2016-10-15T00:00:00Z","type":"journal_article","publist_id":"6029","oa":1,"main_file_link":[{"url":"https://arxiv.org/abs/1609.02863","open_access":"1"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication":"Optics Letters","oa_version":"Preprint","project":[{"call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}],"month":"10","language":[{"iso":"eng"}],"date_updated":"2023-10-17T12:16:24Z","year":"2016","citation":{"ieee":"B. Midya and V. Konotop, “Modes and exceptional points in waveguides with impedance boundary conditions,” <i>Optics Letters</i>, vol. 41, no. 20. Optica Publishing Group, pp. 4621–4624, 2016.","chicago":"Midya, Bikashkali, and Vladimir Konotop. “Modes and Exceptional Points in Waveguides with Impedance Boundary Conditions.” <i>Optics Letters</i>. Optica Publishing Group, 2016. <a href=\"https://doi.org/10.1364/OL.41.004621\">https://doi.org/10.1364/OL.41.004621</a>.","ama":"Midya B, Konotop V. Modes and exceptional points in waveguides with impedance boundary conditions. <i>Optics Letters</i>. 2016;41(20):4621-4624. doi:<a href=\"https://doi.org/10.1364/OL.41.004621\">10.1364/OL.41.004621</a>","apa":"Midya, B., &#38; Konotop, V. (2016). Modes and exceptional points in waveguides with impedance boundary conditions. <i>Optics Letters</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/OL.41.004621\">https://doi.org/10.1364/OL.41.004621</a>","ista":"Midya B, Konotop V. 2016. Modes and exceptional points in waveguides with impedance boundary conditions. Optics Letters. 41(20), 4621–4624.","short":"B. Midya, V. Konotop, Optics Letters 41 (2016) 4621–4624.","mla":"Midya, Bikashkali, and Vladimir Konotop. “Modes and Exceptional Points in Waveguides with Impedance Boundary Conditions.” <i>Optics Letters</i>, vol. 41, no. 20, Optica Publishing Group, 2016, pp. 4621–24, doi:<a href=\"https://doi.org/10.1364/OL.41.004621\">10.1364/OL.41.004621</a>."},"doi":"10.1364/OL.41.004621","day":"15","abstract":[{"text":"A planar waveguide with an impedance boundary, composed of nonperfect metallic plates, and with passive or active dielectric filling, is considered. We show the possibility of selective mode guiding and amplification when a homogeneous pump is added to the dielectric and analyze differences in TE and TM mode propagation. Such a non-conservative system is also shown to feature exceptional points for specific and experimentally tunable parameters, which are described for a particular case of transparent dielectric.","lang":"eng"}],"volume":41,"acknowledgement":"The research of B.M. is supported by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant No. [291734].","_id":"1287","scopus_import":"1","author":[{"last_name":"Midya","first_name":"Bikashkali","full_name":"Midya, Bikashkali","id":"456187FC-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Konotop, Vladimir","last_name":"Konotop","first_name":"Vladimir"}],"issue":"20","publication_status":"published","article_processing_charge":"No","date_created":"2018-12-11T11:51:09Z","department":[{"_id":"MiLe"}],"title":"Modes and exceptional points in waveguides with impedance boundary conditions","intvolume":"        41","page":"4621 - 4624","quality_controlled":"1","ec_funded":1,"publisher":"Optica Publishing Group"},{"day":"28","doi":"10.1103/PhysRevA.92.022514","abstract":[{"text":"Quantum interference between energetically close states is theoretically investigated, with the state structure being observed via laser spectroscopy. In this work, we focus on hyperfine states of selected hydrogenic muonic isotopes, and on how quantum interference affects the measured Lamb shift. The process of photon excitation and subsequent photon decay is implemented within the framework of nonrelativistic second-order perturbation theory. Due to its experimental interest, calculations are performed for muonic hydrogen, deuterium, and helium-3. We restrict our analysis to the case of photon scattering by incident linear polarized photons and the polarization of the scattered photons not being observed. We conclude that while quantum interference effects can be safely neglected in muonic hydrogen and helium-3, in the case of muonic deuterium there are resonances with close proximity, where quantum interference effects can induce shifts up to a few percent of the linewidth, assuming a pointlike detector. However, by taking into account the geometry of the setup used by the CREMA collaboration, this effect is reduced to less than 0.2% of the linewidth in all possible cases, which makes it irrelevant at the present level of accuracy. © 2015 American Physical Society.","lang":"eng"}],"citation":{"chicago":"Amaro, Pedro, Beatrice Franke, Julian Krauth, Marc Diepold, Filippo Fratini, Laleh Safari, Jorge Machado, et al. “Quantum Interference Effects in Laser Spectroscopy of Muonic Hydrogen, Deuterium, and Helium-3.” <i>Physical Review A</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevA.92.022514\">https://doi.org/10.1103/PhysRevA.92.022514</a>.","ieee":"P. Amaro <i>et al.</i>, “Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3,” <i>Physical Review A</i>, vol. 92, no. 2. American Physical Society, 2015.","apa":"Amaro, P., Franke, B., Krauth, J., Diepold, M., Fratini, F., Safari, L., … Santos, J. (2015). Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.92.022514\">https://doi.org/10.1103/PhysRevA.92.022514</a>","ama":"Amaro P, Franke B, Krauth J, et al. Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3. <i>Physical Review A</i>. 2015;92(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.92.022514\">10.1103/PhysRevA.92.022514</a>","ista":"Amaro P, Franke B, Krauth J, Diepold M, Fratini F, Safari L, Machado J, Antognini A, Kottmann F, Indelicato P, Pohl R, Santos J. 2015. Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3. Physical Review A. 92(2), 022514.","mla":"Amaro, Pedro, et al. “Quantum Interference Effects in Laser Spectroscopy of Muonic Hydrogen, Deuterium, and Helium-3.” <i>Physical Review A</i>, vol. 92, no. 2, 022514, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevA.92.022514\">10.1103/PhysRevA.92.022514</a>.","short":"P. Amaro, B. Franke, J. Krauth, M. Diepold, F. Fratini, L. Safari, J. Machado, A. Antognini, F. Kottmann, P. Indelicato, R. Pohl, J. Santos, Physical Review A 92 (2015)."},"year":"2015","date_updated":"2021-01-12T06:52:34Z","volume":92,"department":[{"_id":"MiLe"}],"date_created":"2018-12-11T11:53:30Z","publication_status":"published","intvolume":"        92","title":"Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3","scopus_import":1,"_id":"1693","issue":"2","author":[{"first_name":"Pedro","last_name":"Amaro","full_name":"Amaro, Pedro"},{"full_name":"Franke, Beatrice","last_name":"Franke","first_name":"Beatrice"},{"full_name":"Krauth, Julian","first_name":"Julian","last_name":"Krauth"},{"full_name":"Diepold, Marc","first_name":"Marc","last_name":"Diepold"},{"first_name":"Filippo","last_name":"Fratini","full_name":"Fratini, Filippo"},{"first_name":"Laleh","last_name":"Safari","full_name":"Safari, Laleh","id":"3C325E5E-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Machado, Jorge","last_name":"Machado","first_name":"Jorge"},{"full_name":"Antognini, Aldo","last_name":"Antognini","first_name":"Aldo"},{"full_name":"Kottmann, Franz","last_name":"Kottmann","first_name":"Franz"},{"full_name":"Indelicato, Paul","last_name":"Indelicato","first_name":"Paul"},{"full_name":"Pohl, Randolf","last_name":"Pohl","first_name":"Randolf"},{"full_name":"Santos, José","last_name":"Santos","first_name":"José"}],"publisher":"American Physical Society","ec_funded":1,"quality_controlled":"1","oa":1,"publist_id":"5451","type":"journal_article","date_published":"2015-08-28T00:00:00Z","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1506.02734"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","project":[{"grant_number":"291734","name":"International IST Postdoc Fellowship Programme","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"oa_version":"Preprint","article_number":"022514","month":"08","publication":"Physical Review A","language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"publication":"Physica Status Solidi (B): Basic Solid State Physics","project":[{"name":"International IST Postdoc Fellowship Programme","grant_number":"291734","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"oa_version":"Preprint","month":"09","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1503.03738"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"journal_article","date_published":"2015-09-01T00:00:00Z","oa":1,"publist_id":"5449","ec_funded":1,"quality_controlled":"1","page":"2059 - 2071","publisher":"Wiley","scopus_import":1,"_id":"1695","issue":"9","author":[{"id":"46C405DE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1629-3675","full_name":"Kaczmarczyk, Jan","first_name":"Jan","last_name":"Kaczmarczyk"},{"full_name":"Schickling, Tobias","last_name":"Schickling","first_name":"Tobias"},{"full_name":"Bünemann, Jörg","first_name":"Jörg","last_name":"Bünemann"}],"date_created":"2018-12-11T11:53:31Z","department":[{"_id":"MiLe"}],"publication_status":"published","intvolume":"       252","title":"Evaluation techniques for Gutzwiller wave functions in finite dimensions","volume":252,"citation":{"ieee":"J. Kaczmarczyk, T. Schickling, and J. Bünemann, “Evaluation techniques for Gutzwiller wave functions in finite dimensions,” <i>Physica Status Solidi (B): Basic Solid State Physics</i>, vol. 252, no. 9. Wiley, pp. 2059–2071, 2015.","chicago":"Kaczmarczyk, Jan, Tobias Schickling, and Jörg Bünemann. “Evaluation Techniques for Gutzwiller Wave Functions in Finite Dimensions.” <i>Physica Status Solidi (B): Basic Solid State Physics</i>. Wiley, 2015. <a href=\"https://doi.org/10.1002/pssb.201552082\">https://doi.org/10.1002/pssb.201552082</a>.","ama":"Kaczmarczyk J, Schickling T, Bünemann J. Evaluation techniques for Gutzwiller wave functions in finite dimensions. <i>Physica Status Solidi (B): Basic Solid State Physics</i>. 2015;252(9):2059-2071. doi:<a href=\"https://doi.org/10.1002/pssb.201552082\">10.1002/pssb.201552082</a>","apa":"Kaczmarczyk, J., Schickling, T., &#38; Bünemann, J. (2015). Evaluation techniques for Gutzwiller wave functions in finite dimensions. <i>Physica Status Solidi (B): Basic Solid State Physics</i>. Wiley. <a href=\"https://doi.org/10.1002/pssb.201552082\">https://doi.org/10.1002/pssb.201552082</a>","ista":"Kaczmarczyk J, Schickling T, Bünemann J. 2015. Evaluation techniques for Gutzwiller wave functions in finite dimensions. Physica Status Solidi (B): Basic Solid State Physics. 252(9), 2059–2071.","short":"J. Kaczmarczyk, T. Schickling, J. Bünemann, Physica Status Solidi (B): Basic Solid State Physics 252 (2015) 2059–2071.","mla":"Kaczmarczyk, Jan, et al. “Evaluation Techniques for Gutzwiller Wave Functions in Finite Dimensions.” <i>Physica Status Solidi (B): Basic Solid State Physics</i>, vol. 252, no. 9, Wiley, 2015, pp. 2059–71, doi:<a href=\"https://doi.org/10.1002/pssb.201552082\">10.1002/pssb.201552082</a>."},"year":"2015","date_updated":"2021-01-12T06:52:34Z","day":"01","doi":"10.1002/pssb.201552082","abstract":[{"lang":"eng","text":"We give a comprehensive introduction into a diagrammatic method that allows for the evaluation of Gutzwiller wave functions in finite spatial dimensions. We discuss in detail some numerical schemes that turned out to be useful in the real-space evaluation of the diagrams. The method is applied to the problem of d-wave superconductivity in a two-dimensional single-band Hubbard model. Here, we discuss in particular the role of long-range contributions in our diagrammatic expansion. We further reconsider our previous analysis on the kinetic energy gain in the superconducting state."}]},{"volume":92,"acknowledgement":"The work was partly supported by the National Science Centre (NCN) under MAESTRO, Grant No. DEC-2012/04/A/ST3/00342. M.W. acknowledges the hospitality of the Institute of Science and Technology Austria during the final stage of development of the present work, as well as partial financial support from the Society-Environment-Technology project of the Jagiellonian University for that stay. J.K. acknowledges support from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA Grant Agreement No. [291734 ].","date_updated":"2021-01-12T06:52:35Z","year":"2015","citation":{"mla":"Wysokiński, Marcin, et al. “Gutzwiller Wave Function Solution for Anderson Lattice Model: Emerging Universal Regimes of Heavy Quasiparticle States.” <i>Physical Review B</i>, vol. 92, no. 12, 125135, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevB.92.125135\">10.1103/PhysRevB.92.125135</a>.","short":"M. Wysokiński, J. Kaczmarczyk, J. Spałek, Physical Review B 92 (2015).","ista":"Wysokiński M, Kaczmarczyk J, Spałek J. 2015. Gutzwiller wave function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states. Physical Review B. 92(12), 125135.","apa":"Wysokiński, M., Kaczmarczyk, J., &#38; Spałek, J. (2015). Gutzwiller wave function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.92.125135\">https://doi.org/10.1103/PhysRevB.92.125135</a>","ama":"Wysokiński M, Kaczmarczyk J, Spałek J. Gutzwiller wave function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states. <i>Physical Review B</i>. 2015;92(12). doi:<a href=\"https://doi.org/10.1103/PhysRevB.92.125135\">10.1103/PhysRevB.92.125135</a>","chicago":"Wysokiński, Marcin, Jan Kaczmarczyk, and Jozef Spałek. “Gutzwiller Wave Function Solution for Anderson Lattice Model: Emerging Universal Regimes of Heavy Quasiparticle States.” <i>Physical Review B</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevB.92.125135\">https://doi.org/10.1103/PhysRevB.92.125135</a>.","ieee":"M. Wysokiński, J. Kaczmarczyk, and J. Spałek, “Gutzwiller wave function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states,” <i>Physical Review B</i>, vol. 92, no. 12. American Physical Society, 2015."},"doi":"10.1103/PhysRevB.92.125135","day":"18","abstract":[{"lang":"eng","text":"The recently proposed diagrammatic expansion (DE) technique for the full Gutzwiller wave function (GWF) is applied to the Anderson lattice model. This approach allows for a systematic evaluation of the expectation values with full Gutzwiller wave function in finite-dimensional systems. It introduces results extending in an essential manner those obtained by means of the standard Gutzwiller approximation (GA), which is variationally exact only in infinite dimensions. Within the DE-GWF approach we discuss the principal paramagnetic properties and their relevance to heavy-fermion systems. We demonstrate the formation of an effective, narrow f band originating from atomic f-electron states and subsequently interpret this behavior as a direct itineracy of f electrons; it represents a combined effect of both the hybridization and the correlations induced by the Coulomb repulsive interaction. Such a feature is absent on the level of GA, which is equivalent to the zeroth order of our expansion. Formation of the hybridization- and electron-concentration-dependent narrow f band rationalizes the common assumption of such dispersion of f levels in the phenomenological modeling of the band structure of CeCoIn5. Moreover, it is shown that the emerging f-electron direct itineracy leads in a natural manner to three physically distinct regimes within a single model that are frequently discussed for 4f- or 5f-electron compounds as separate model situations. We identify these regimes as (i) the mixed-valence regime, (ii) Kondo/almost-Kondo insulating regime, and (iii) the Kondo-lattice limit when the f-electron occupancy is very close to the f-state half filling, ⟨nˆf⟩→1. The nonstandard features of the emerging correlated quantum liquid state are stressed."}],"quality_controlled":"1","ec_funded":1,"publisher":"American Physical Society","_id":"1696","scopus_import":1,"author":[{"first_name":"Marcin","last_name":"Wysokiński","full_name":"Wysokiński, Marcin"},{"last_name":"Kaczmarczyk","first_name":"Jan","full_name":"Kaczmarczyk, Jan","orcid":"0000-0002-1629-3675","id":"46C405DE-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Spałek","first_name":"Jozef","full_name":"Spałek, Jozef"}],"issue":"12","publication_status":"published","date_created":"2018-12-11T11:53:31Z","department":[{"_id":"MiLe"}],"title":"Gutzwiller wave function solution for Anderson lattice model: Emerging universal regimes of heavy quasiparticle states","intvolume":"        92","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1505.07003"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_published":"2015-09-18T00:00:00Z","type":"journal_article","oa":1,"publist_id":"5448","language":[{"iso":"eng"}],"publication":"Physical Review B","oa_version":"Preprint","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","grant_number":"291734","name":"International IST Postdoc Fellowship Programme"}],"month":"09","article_number":"125135"},{"language":[{"iso":"eng"}],"publisher":"American Physical Society","issue":"8","author":[{"full_name":"Van Loon, Erik","first_name":"Erik","last_name":"Van Loon"},{"first_name":"Mikhail","last_name":"Katsnelson","full_name":"Katsnelson, Mikhail"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802"}],"scopus_import":1,"_id":"1700","publication":"Physical Review B","intvolume":"        92","article_number":"081106","title":"Ultralong-range order in the Fermi-Hubbard model with long-range interactions","month":"08","date_created":"2018-12-11T11:53:32Z","department":[{"_id":"MiLe"}],"oa_version":"Preprint","publication_status":"published","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1506.06007"}],"acknowledgement":"The work is supported by European Research Council (ERC) Advanced Grant No. 338957 FEMTO/NANO.","volume":92,"type":"journal_article","date_published":"2015-08-10T00:00:00Z","citation":{"ista":"Van Loon E, Katsnelson M, Lemeshko M. 2015. Ultralong-range order in the Fermi-Hubbard model with long-range interactions. Physical Review B. 92(8), 081106.","mla":"Van Loon, Erik, et al. “Ultralong-Range Order in the Fermi-Hubbard Model with Long-Range Interactions.” <i>Physical Review B</i>, vol. 92, no. 8, 081106, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevB.92.081106\">10.1103/PhysRevB.92.081106</a>.","short":"E. Van Loon, M. Katsnelson, M. Lemeshko, Physical Review B 92 (2015).","chicago":"Van Loon, Erik, Mikhail Katsnelson, and Mikhail Lemeshko. “Ultralong-Range Order in the Fermi-Hubbard Model with Long-Range Interactions.” <i>Physical Review B</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevB.92.081106\">https://doi.org/10.1103/PhysRevB.92.081106</a>.","ieee":"E. Van Loon, M. Katsnelson, and M. Lemeshko, “Ultralong-range order in the Fermi-Hubbard model with long-range interactions,” <i>Physical Review B</i>, vol. 92, no. 8. American Physical Society, 2015.","apa":"Van Loon, E., Katsnelson, M., &#38; Lemeshko, M. (2015). Ultralong-range order in the Fermi-Hubbard model with long-range interactions. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.92.081106\">https://doi.org/10.1103/PhysRevB.92.081106</a>","ama":"Van Loon E, Katsnelson M, Lemeshko M. Ultralong-range order in the Fermi-Hubbard model with long-range interactions. <i>Physical Review B</i>. 2015;92(8). doi:<a href=\"https://doi.org/10.1103/PhysRevB.92.081106\">10.1103/PhysRevB.92.081106</a>"},"year":"2015","date_updated":"2021-01-12T06:52:37Z","publist_id":"5441","oa":1,"abstract":[{"text":"We use the dual boson approach to reveal the phase diagram of the Fermi-Hubbard model with long-range dipole-dipole interactions. By using a large-scale finite-temperature calculation on a 64×64 square lattice we demonstrate the existence of a novel phase, possessing an &quot;ultralong-range&quot; order. The fingerprint of this phase - the density correlation function - features a nontrivial behavior on a scale of tens of lattice sites. We study the properties and the stability of the ultralong-range-ordered phase, and show that it is accessible in modern experiments with ultracold polar molecules and magnetic atoms.","lang":"eng"}],"day":"10","doi":"10.1103/PhysRevB.92.081106"},{"publisher":"American Institute of Physics","ec_funded":1,"publication_status":"published","date_created":"2018-12-11T11:54:08Z","department":[{"_id":"MiLe"}],"title":"Analytical evaluation of atomic form factors: Application to Rayleigh scattering","intvolume":"        56","_id":"1811","scopus_import":1,"author":[{"id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","first_name":"Laleh","last_name":"Safari","full_name":"Safari, Laleh"},{"last_name":"Santos","first_name":"José","full_name":"Santos, José"},{"full_name":"Amaro, Pedro","last_name":"Amaro","first_name":"Pedro"},{"full_name":"Jänkälä, Kari","last_name":"Jänkälä","first_name":"Kari"},{"first_name":"Filippo","last_name":"Fratini","full_name":"Fratini, Filippo"}],"issue":"5","acknowledgement":"The research leading to these results has received funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement n◦ [291734]. F.F. acknowledges support by Fundação de Amparo à Pesquisa do estado de Minas Gerais (FAPEMIG), by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), and by the Austrian Science Fund (FWF) through the START Grant No. Y 591-N16.","volume":56,"doi":"10.1063/1.4921227","day":"20","abstract":[{"text":"Atomic form factors are widely used for the characterization of targets and specimens, from crystallography to biology. By using recent mathematical results, here we derive an analytical expression for the atomic form factor within the independent particle model constructed from nonrelativistic screened hydrogenic wave functions. The range of validity of this analytical expression is checked by comparing the analytically obtained form factors with the ones obtained within the Hartee-Fock method. As an example, we apply our analytical expression for the atomic form factor to evaluate the differential cross section for Rayleigh scattering off neutral atoms.","lang":"eng"}],"date_updated":"2021-01-12T06:53:21Z","citation":{"ieee":"L. Safari, J. Santos, P. Amaro, K. Jänkälä, and F. Fratini, “Analytical evaluation of atomic form factors: Application to Rayleigh scattering,” <i>Journal of Mathematical Physics</i>, vol. 56, no. 5. American Institute of Physics, 2015.","chicago":"Safari, Laleh, José Santos, Pedro Amaro, Kari Jänkälä, and Filippo Fratini. “Analytical Evaluation of Atomic Form Factors: Application to Rayleigh Scattering.” <i>Journal of Mathematical Physics</i>. American Institute of Physics, 2015. <a href=\"https://doi.org/10.1063/1.4921227\">https://doi.org/10.1063/1.4921227</a>.","apa":"Safari, L., Santos, J., Amaro, P., Jänkälä, K., &#38; Fratini, F. (2015). Analytical evaluation of atomic form factors: Application to Rayleigh scattering. <i>Journal of Mathematical Physics</i>. American Institute of Physics. <a href=\"https://doi.org/10.1063/1.4921227\">https://doi.org/10.1063/1.4921227</a>","ama":"Safari L, Santos J, Amaro P, Jänkälä K, Fratini F. Analytical evaluation of atomic form factors: Application to Rayleigh scattering. <i>Journal of Mathematical Physics</i>. 2015;56(5). doi:<a href=\"https://doi.org/10.1063/1.4921227\">10.1063/1.4921227</a>","ista":"Safari L, Santos J, Amaro P, Jänkälä K, Fratini F. 2015. Analytical evaluation of atomic form factors: Application to Rayleigh scattering. Journal of Mathematical Physics. 56(5), 052105.","mla":"Safari, Laleh, et al. “Analytical Evaluation of Atomic Form Factors: Application to Rayleigh Scattering.” <i>Journal of Mathematical Physics</i>, vol. 56, no. 5, 052105, American Institute of Physics, 2015, doi:<a href=\"https://doi.org/10.1063/1.4921227\">10.1063/1.4921227</a>.","short":"L. Safari, J. Santos, P. Amaro, K. Jänkälä, F. Fratini, Journal of Mathematical Physics 56 (2015)."},"year":"2015","language":[{"iso":"eng"}],"oa_version":"Preprint","project":[{"name":"International IST Postdoc Fellowship Programme","grant_number":"291734","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"month":"05","article_number":"052105","publication":"Journal of Mathematical Physics","main_file_link":[{"url":"http://arxiv.org/abs/1409.0110","open_access":"1"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"publist_id":"5295","date_published":"2015-05-20T00:00:00Z","type":"journal_article"},{"type":"journal_article","date_published":"2015-04-01T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publist_id":"5294","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","file":[{"file_id":"5184","creator":"system","access_level":"open_access","relation":"main_file","date_updated":"2020-07-14T12:45:17Z","file_name":"IST-2016-446-v1+1_document.pdf","content_type":"application/pdf","date_created":"2018-12-12T10:15:59Z","file_size":1900925,"checksum":"551f751a75b39b89a1db2f7f498f9a49"}],"has_accepted_license":"1","publication":"New Journal of Physics","article_number":"045005","month":"04","oa_version":"Published Version","language":[{"iso":"eng"}],"citation":{"ama":"Lahrz M, Lemeshko M, Mathey L. Exotic roton excitations in quadrupolar Bose–Einstein condensates . <i>New Journal of Physics</i>. 2015;17(4). doi:<a href=\"https://doi.org/10.1088/1367-2630/17/4/045005\">10.1088/1367-2630/17/4/045005</a>","apa":"Lahrz, M., Lemeshko, M., &#38; Mathey, L. (2015). Exotic roton excitations in quadrupolar Bose–Einstein condensates . <i>New Journal of Physics</i>. IOP Publishing Ltd. <a href=\"https://doi.org/10.1088/1367-2630/17/4/045005\">https://doi.org/10.1088/1367-2630/17/4/045005</a>","chicago":"Lahrz, Martin, Mikhail Lemeshko, and Ludwig Mathey. “Exotic Roton Excitations in Quadrupolar Bose–Einstein Condensates .” <i>New Journal of Physics</i>. IOP Publishing Ltd., 2015. <a href=\"https://doi.org/10.1088/1367-2630/17/4/045005\">https://doi.org/10.1088/1367-2630/17/4/045005</a>.","ieee":"M. Lahrz, M. Lemeshko, and L. Mathey, “Exotic roton excitations in quadrupolar Bose–Einstein condensates ,” <i>New Journal of Physics</i>, vol. 17, no. 4. IOP Publishing Ltd., 2015.","short":"M. Lahrz, M. Lemeshko, L. Mathey, New Journal of Physics 17 (2015).","mla":"Lahrz, Martin, et al. “Exotic Roton Excitations in Quadrupolar Bose–Einstein Condensates .” <i>New Journal of Physics</i>, vol. 17, no. 4, 045005, IOP Publishing Ltd., 2015, doi:<a href=\"https://doi.org/10.1088/1367-2630/17/4/045005\">10.1088/1367-2630/17/4/045005</a>.","ista":"Lahrz M, Lemeshko M, Mathey L. 2015. Exotic roton excitations in quadrupolar Bose–Einstein condensates . New Journal of Physics. 17(4), 045005."},"year":"2015","date_updated":"2021-01-12T06:53:22Z","abstract":[{"text":"We investigate the occurrence of rotons in a quadrupolar Bose–Einstein condensate confined to two dimensions. Depending on the particle density, the ratio of the contact and quadrupole–quadrupole interactions, and the alignment of the quadrupole moments with respect to the confinement plane, the dispersion relation features two or four point-like roton minima or one ring-shaped minimum. We map out the entire parameter space of the roton behavior and identify the instability regions. We propose to observe the exotic rotons by monitoring the characteristic density wave dynamics resulting from a short local perturbation, and discuss the possibilities to detect the predicted effects in state-of-the-art experiments with ultracold homonuclear molecules.\r\n","lang":"eng"}],"day":"01","doi":"10.1088/1367-2630/17/4/045005","ddc":["530"],"volume":17,"issue":"4","author":[{"full_name":"Lahrz, Martin","first_name":"Martin","last_name":"Lahrz"},{"first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Ludwig","last_name":"Mathey","full_name":"Mathey, Ludwig"}],"scopus_import":1,"_id":"1812","intvolume":"        17","pubrep_id":"446","title":"Exotic roton excitations in quadrupolar Bose–Einstein condensates ","department":[{"_id":"MiLe"}],"date_created":"2018-12-11T11:54:09Z","article_processing_charge":"No","publication_status":"published","file_date_updated":"2020-07-14T12:45:17Z","quality_controlled":"1","publisher":"IOP Publishing Ltd."},{"main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1502.03447"}],"volume":114,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","day":"18","doi":"10.1103/PhysRevLett.114.203001","oa":1,"publist_id":"5293","abstract":[{"lang":"eng","text":"We develop a microscopic theory describing a quantum impurity whose rotational degree of freedom is coupled to a many-particle bath. We approach the problem by introducing the concept of an “angulon”—a quantum rotor dressed by a quantum field—and reveal its quasiparticle properties using a combination of variational and diagrammatic techniques. Our theory predicts renormalization of the impurity rotational structure, such as that observed in experiments with molecules in superfluid helium droplets, in terms of a rotational Lamb shift induced by the many-particle environment. Furthermore, we discover a rich many-body-induced fine structure, emerging in rotational spectra due to a redistribution of angular momentum within the quantum many-body system."}],"citation":{"ieee":"R. Schmidt and M. Lemeshko, “Rotation of quantum impurities in the presence of a many-body environment,” <i>Physical Review Letters</i>, vol. 114, no. 20. American Physical Society, 2015.","chicago":"Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” <i>Physical Review Letters</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">https://doi.org/10.1103/PhysRevLett.114.203001</a>.","ama":"Schmidt R, Lemeshko M. Rotation of quantum impurities in the presence of a many-body environment. <i>Physical Review Letters</i>. 2015;114(20). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">10.1103/PhysRevLett.114.203001</a>","apa":"Schmidt, R., &#38; Lemeshko, M. (2015). Rotation of quantum impurities in the presence of a many-body environment. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">https://doi.org/10.1103/PhysRevLett.114.203001</a>","ista":"Schmidt R, Lemeshko M. 2015. Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. 114(20), 203001.","mla":"Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” <i>Physical Review Letters</i>, vol. 114, no. 20, 203001, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">10.1103/PhysRevLett.114.203001</a>.","short":"R. Schmidt, M. Lemeshko, Physical Review Letters 114 (2015)."},"year":"2015","date_updated":"2021-01-12T06:53:22Z","type":"journal_article","date_published":"2015-05-18T00:00:00Z","publisher":"American Physical Society","quality_controlled":"1","language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"date_created":"2018-12-11T11:54:09Z","oa_version":"Preprint","publication_status":"published","intvolume":"       114","article_number":"203001","title":"Rotation of quantum impurities in the presence of a many-body environment","month":"05","scopus_import":1,"_id":"1813","publication":"Physical Review Letters","issue":"20","author":[{"full_name":"Schmidt, Richard","last_name":"Schmidt","first_name":"Richard"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"}]},{"doi":"10.1103/PhysRevA.92.062506","arxiv":1,"day":"31","abstract":[{"text":"We investigate the quantum interference shifts between energetically close states, where the state structure is observed by laser spectroscopy. We report a compact and analytical expression that models the quantum interference induced shift for any admixture of circular polarization of the incident laser and angle of observation. An experimental scenario free of quantum interference can thus be predicted with this formula. Although this study is exemplified here for muonic deuterium, it can be applied to any other laser spectroscopy measurement of ns-n′p frequencies of a nonrelativistic atomic system, via an ns→n′p→n′′s scheme.","lang":"eng"}],"date_updated":"2021-01-12T06:51:47Z","year":"2015","citation":{"ista":"Amaro P, Fratini F, Safari L, Antognini A, Indelicato P, Pohl R, Santos J. 2015. Quantum interference shifts in laser spectroscopy with elliptical polarization. Physical Review A - Atomic, Molecular, and Optical Physics. 92(6), 062506.","short":"P. Amaro, F. Fratini, L. Safari, A. Antognini, P. Indelicato, R. Pohl, J. Santos, Physical Review A - Atomic, Molecular, and Optical Physics 92 (2015).","mla":"Amaro, Pedro, et al. “Quantum Interference Shifts in Laser Spectroscopy with Elliptical Polarization.” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 92, no. 6, 062506, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevA.92.062506\">10.1103/PhysRevA.92.062506</a>.","chicago":"Amaro, Pedro, Filippo Fratini, Laleh Safari, Aldo Antognini, Paul Indelicato, Randolf Pohl, and José Santos. “Quantum Interference Shifts in Laser Spectroscopy with Elliptical Polarization.” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevA.92.062506\">https://doi.org/10.1103/PhysRevA.92.062506</a>.","ieee":"P. Amaro <i>et al.</i>, “Quantum interference shifts in laser spectroscopy with elliptical polarization,” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 92, no. 6. American Physical Society, 2015.","ama":"Amaro P, Fratini F, Safari L, et al. Quantum interference shifts in laser spectroscopy with elliptical polarization. <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. 2015;92(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.92.062506\">10.1103/PhysRevA.92.062506</a>","apa":"Amaro, P., Fratini, F., Safari, L., Antognini, A., Indelicato, P., Pohl, R., &#38; Santos, J. (2015). Quantum interference shifts in laser spectroscopy with elliptical polarization. <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.92.062506\">https://doi.org/10.1103/PhysRevA.92.062506</a>"},"external_id":{"arxiv":["1511.03585"]},"volume":92,"publication_status":"published","article_processing_charge":"No","department":[{"_id":"MiLe"}],"date_created":"2018-12-11T11:52:53Z","title":"Quantum interference shifts in laser spectroscopy with elliptical polarization","intvolume":"        92","_id":"1587","scopus_import":1,"author":[{"first_name":"Pedro","last_name":"Amaro","full_name":"Amaro, Pedro"},{"first_name":"Filippo","last_name":"Fratini","full_name":"Fratini, Filippo"},{"id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","last_name":"Safari","first_name":"Laleh","full_name":"Safari, Laleh"},{"first_name":"Aldo","last_name":"Antognini","full_name":"Antognini, Aldo"},{"full_name":"Indelicato, Paul","last_name":"Indelicato","first_name":"Paul"},{"full_name":"Pohl, Randolf","last_name":"Pohl","first_name":"Randolf"},{"first_name":"José","last_name":"Santos","full_name":"Santos, José"}],"issue":"6","publisher":"American Physical Society","article_type":"original","ec_funded":1,"quality_controlled":"1","oa":1,"publist_id":"5584","date_published":"2015-12-31T00:00:00Z","type":"journal_article","main_file_link":[{"url":"https://arxiv.org/abs/1511.03585","open_access":"1"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","oa_version":"Preprint","project":[{"call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","grant_number":"291734","name":"International IST Postdoc Fellowship Programme"}],"month":"12","article_number":"062506","publication":"Physical Review A - Atomic, Molecular, and Optical Physics","language":[{"iso":"eng"}]},{"ec_funded":1,"quality_controlled":"1","publisher":"American Physical Society","scopus_import":1,"_id":"1995","issue":"24","author":[{"full_name":"Fratini, Filippo","first_name":"Filippo","last_name":"Fratini"},{"last_name":"Mascarenhas","first_name":"Eduardo","full_name":"Mascarenhas, Eduardo"},{"id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","last_name":"Safari","first_name":"Laleh","full_name":"Safari, Laleh"},{"full_name":"Poizat, Jean","first_name":"Jean","last_name":"Poizat"},{"last_name":"Valente","first_name":"Daniel","full_name":"Valente, Daniel"},{"last_name":"Auffèves","first_name":"Alexia","full_name":"Auffèves, Alexia"},{"full_name":"Gerace, Dario","first_name":"Dario","last_name":"Gerace"},{"first_name":"Marcelo","last_name":"Santos","full_name":"Santos, Marcelo"}],"department":[{"_id":"MiLe"}],"date_created":"2018-12-11T11:55:06Z","publication_status":"published","intvolume":"       113","title":"Fabry-Perot interferometer with quantum mirrors: Nonlinear light transport and rectification","volume":113,"citation":{"ista":"Fratini F, Mascarenhas E, Safari L, Poizat J, Valente D, Auffèves A, Gerace D, Santos M. 2014. Fabry-Perot interferometer with quantum mirrors: Nonlinear light transport and rectification. Physical Review Letters. 113(24), 243601.","mla":"Fratini, Filippo, et al. “Fabry-Perot Interferometer with Quantum Mirrors: Nonlinear Light Transport and Rectification.” <i>Physical Review Letters</i>, vol. 113, no. 24, 243601, American Physical Society, 2014, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.113.243601\">10.1103/PhysRevLett.113.243601</a>.","short":"F. Fratini, E. Mascarenhas, L. Safari, J. Poizat, D. Valente, A. Auffèves, D. Gerace, M. Santos, Physical Review Letters 113 (2014).","ieee":"F. Fratini <i>et al.</i>, “Fabry-Perot interferometer with quantum mirrors: Nonlinear light transport and rectification,” <i>Physical Review Letters</i>, vol. 113, no. 24. American Physical Society, 2014.","chicago":"Fratini, Filippo, Eduardo Mascarenhas, Laleh Safari, Jean Poizat, Daniel Valente, Alexia Auffèves, Dario Gerace, and Marcelo Santos. “Fabry-Perot Interferometer with Quantum Mirrors: Nonlinear Light Transport and Rectification.” <i>Physical Review Letters</i>. American Physical Society, 2014. <a href=\"https://doi.org/10.1103/PhysRevLett.113.243601\">https://doi.org/10.1103/PhysRevLett.113.243601</a>.","apa":"Fratini, F., Mascarenhas, E., Safari, L., Poizat, J., Valente, D., Auffèves, A., … Santos, M. (2014). Fabry-Perot interferometer with quantum mirrors: Nonlinear light transport and rectification. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.113.243601\">https://doi.org/10.1103/PhysRevLett.113.243601</a>","ama":"Fratini F, Mascarenhas E, Safari L, et al. Fabry-Perot interferometer with quantum mirrors: Nonlinear light transport and rectification. <i>Physical Review Letters</i>. 2014;113(24). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.113.243601\">10.1103/PhysRevLett.113.243601</a>"},"year":"2014","date_updated":"2021-01-12T06:54:34Z","day":"08","doi":"10.1103/PhysRevLett.113.243601","abstract":[{"text":"Optical transport represents a natural route towards fast communications, and it is currently used in large scale data transfer. The progressive miniaturization of devices for information processing calls for the microscopic tailoring of light transport and confinement at length scales appropriate for upcoming technologies. With this goal in mind, we present a theoretical analysis of a one-dimensional Fabry-Perot interferometer built with two highly saturable nonlinear mirrors: a pair of two-level systems. Our approach captures nonlinear and nonreciprocal effects of light transport that were not reported previously. Remarkably, we show that such an elementary device can operate as a microscopic integrated optical rectifier.","lang":"eng"}],"language":[{"iso":"eng"}],"publication":"Physical Review Letters","project":[{"name":"International IST Postdoc Fellowship Programme","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"}],"oa_version":"Submitted Version","article_number":"243601","month":"12","main_file_link":[{"url":"http://arxiv.org/abs/1410.5972","open_access":"1"}],"status":"public","user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","type":"journal_article","date_published":"2014-12-08T00:00:00Z","oa":1,"publist_id":"5085"}]