@article{15053,
  abstract     = {Atom-based quantum simulators have had many successes in tackling challenging quantum many-body problems, owing to the precise and dynamical control that they provide over the systems' parameters. They are, however, often optimized to address a specific type of problem. Here, we present the design and implementation of a 6Li-based quantum gas platform that provides wide-ranging capabilities and is able to address a variety of quantum many-body problems. Our two-chamber architecture relies on a robust combination of gray molasses and optical transport from a laser-cooling chamber to a glass cell with excellent optical access. There, we first create unitary Fermi superfluids in a three-dimensional axially symmetric harmonic trap and characterize them using in situ thermometry, reaching temperatures below 20 nK. This allows us to enter the deep superfluid regime with samples of extreme diluteness, where the interparticle spacing is sufficiently large for direct single-atom imaging. Second, we generate optical lattice potentials with triangular and honeycomb geometry in which we study diffraction of molecular Bose-Einstein condensates, and show how going beyond the Kapitza-Dirac regime allows us to unambiguously distinguish between the two geometries. With the ability to probe quantum many-body physics in both discrete and continuous space, and its suitability for bulk and single-atom imaging, our setup represents an important step towards achieving a wide-scope quantum simulator.},
  author       = {Jin, Shuwei and Dai, Kunlun and Verstraten, Joris and Dixmerias, Maxime and Al Hyder, Ragheed and Salomon, Christophe and Peaudecerf, Bruno and de Jongh, Tim and Yefsah, Tarik},
  issn         = {2643-1564},
  journal      = {Physical Review Research},
  keywords     = {General Physics and Astronomy},
  number       = {1},
  publisher    = {American Physical Society},
  title        = {{Multipurpose platform for analog quantum simulation}},
  doi          = {10.1103/physrevresearch.6.013158},
  volume       = {6},
  year         = {2024},
}

@article{14321,
  abstract     = {We demonstrate the possibility of a coupling between the magnetization direction of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate the mechanism of the coupling, we analyze a minimal Stoner model that includes Rashba spin–orbit coupling due to the electric field on the surface of the ferromagnet. The proposed mechanism allows us to study magnetic anisotropy of the system with an extended Stoner–Wohlfarth model and argue that adsorbed achiral molecules can change magnetocrystalline anisotropy of the substrate. Our research aims to motivate further experimental studies of the current-free chirality induced spin selectivity effect involving both enantiomers.},
  author       = {Al Hyder, Ragheed and Cappellaro, Alberto and Lemeshko, Mikhail and Volosniev, Artem},
  issn         = {1089-7690},
  journal      = {The Journal of Chemical Physics},
  keywords     = {Physical and Theoretical Chemistry, General Physics and Astronomy},
  number       = {10},
  publisher    = {AIP Publishing},
  title        = {{Achiral dipoles on a ferromagnet can affect its magnetization direction}},
  doi          = {10.1063/5.0165806},
  volume       = {159},
  year         = {2023},
}

@article{14334,
  abstract     = {Quantum kinetically constrained models have recently attracted significant attention due to their anomalous dynamics and thermalization. In this work, we introduce a hitherto unexplored family of kinetically constrained models featuring conserved particle number and strong inversion-symmetry breaking due to facilitated hopping. We demonstrate that these models provide a generic example of so-called quantum Hilbert space fragmentation, that is manifested in disconnected sectors in the Hilbert space that are not apparent in the computational basis. Quantum Hilbert space fragmentation leads to an exponential in system size number of eigenstates with exactly zero entanglement entropy across several bipartite cuts. These eigenstates can be probed dynamically using quenches from simple initial product states. In addition, we study the particle spreading under unitary dynamics launched from the domain wall state, and find faster than diffusive dynamics at high particle densities, that crosses over into logarithmically slow relaxation at smaller densities. Using a classically simulable cellular automaton, we reproduce the logarithmic dynamics observed in the quantum case. Our work suggests that particle conserving constrained models with inversion symmetry breaking realize so far unexplored dynamical behavior and invite their further theoretical and experimental studies.},
  author       = {Brighi, Pietro and Ljubotina, Marko and Serbyn, Maksym},
  issn         = {2542-4653},
  journal      = {SciPost Physics},
  keywords     = {General Physics and Astronomy},
  number       = {3},
  publisher    = {SciPost Foundation},
  title        = {{Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models}},
  doi          = {10.21468/scipostphys.15.3.093},
  volume       = {15},
  year         = {2023},
}

@article{14650,
  abstract     = {We study the out-of-equilibrium quantum dynamics of dipolar polarons, i.e., impurities immersed in a dipolar Bose-Einstein condensate, after a quench of the impurity-boson interaction. We show that the dipolar nature of the condensate and of the impurity results in anisotropic relaxation dynamics, in particular, anisotropic dressing of the polaron. More relevantly for cold-atom setups, quench dynamics is strongly affected by the interplay between dipolar anisotropy and trap geometry. Our findings pave the way for simulating impurities in anisotropic media utilizing experiments with dipolar mixtures.},
  author       = {Volosniev, Artem and Bighin, Giacomo and Santos, Luis and Peña Ardila, Luisllu A.},
  issn         = {2542-4653},
  journal      = {SciPost Physics},
  keywords     = {General Physics and Astronomy},
  number       = {6},
  publisher    = {SciPost Foundation},
  title        = {{Non-equilibrium dynamics of dipolar polarons}},
  doi          = {10.21468/scipostphys.15.6.232},
  volume       = {15},
  year         = {2023},
}

@article{14754,
  abstract     = {The large-scale laminar/turbulent spiral patterns that appear in the linearly unstable regime of counter-rotating Taylor–Couette flow are investigated from a statistical perspective by means of direct numerical simulation. Unlike the vast majority of previous numerical studies, we analyse the flow in periodic parallelogram-annular domains, following a coordinate change that aligns one of the parallelogram sides with the spiral pattern. The domain size, shape and spatial resolution have been varied and the results compared with those in a sufficiently large computational orthogonal domain with natural axial and azimuthal periodicity. We find that a minimal parallelogram of the right tilt significantly reduces the computational cost without notably compromising the statistical properties of the supercritical turbulent spiral. Its mean structure, obtained from extremely long time integrations in a co-rotating reference frame using the method of slices, bears remarkable similarity with the turbulent stripes observed in plane Couette flow, the centrifugal instability playing only a secondary role.},
  author       = {Wang, B. and Mellibovsky, F. and Ayats López, Roger and Deguchi, K. and Meseguer, A.},
  issn         = {1471-2962},
  journal      = {Philosophical Transactions of the Royal Society A},
  keywords     = {General Physics and Astronomy, General Engineering, General Mathematics},
  number       = {2246},
  publisher    = {The Royal Society},
  title        = {{Mean structure of the supercritical turbulent spiral in Taylor–Couette flow}},
  doi          = {10.1098/rsta.2022.0112},
  volume       = {381},
  year         = {2023},
}

@article{14773,
  abstract     = {Through a combination of idealized simulations and real-world data, researchers are uncovering how internal feedbacks and large-scale motions influence cloud dynamics.},
  author       = {Muller, Caroline J and Abramian, Sophie},
  issn         = {1945-0699},
  journal      = {Physics Today},
  keywords     = {General Physics and Astronomy},
  number       = {5},
  publisher    = {AIP Publishing},
  title        = {{The cloud dynamics of convective storm systems}},
  doi          = {10.1063/pt.3.5234},
  volume       = {76},
  year         = {2023},
}

@article{14777,
  abstract     = {The effects of the partial V-substitution for Ag on the thermoelectric (TE) properties are investigated for a flexible semiconducting compound Ag2S0.55Se0.45. Density functional theory calculations predict that such a partial V-substitution constructively modifies the electronic structure near the bottom of the conduction band to improve the TE performance. The synthesized Ag1.97V0.03S0.55Se0.45 is found to possess a TE dimensionless figure-of-merit (ZT) of 0.71 at 350 K with maintaining its flexible nature. This ZT value is relatively high in comparison with those reported for flexible TE materials below 360 K. The increase in the ZT value is caused by the enhanced absolute value of the Seebeck coefficient with less significant variation in electrical resistivity. The high ZT value with the flexible nature naturally allows us to employ the Ag1.97V0.03S0.55Se0.45 as a component of flexible TE generators.},
  author       = {Sato, Kosuke and Singh, Saurabh and Yamazaki, Itsuki and Hirata, Keisuke and Ang, Artoni Kevin R. and Matsunami, Masaharu and Takeuchi, Tsunehiro},
  issn         = {2158-3226},
  journal      = {AIP Advances},
  keywords     = {General Physics and Astronomy},
  number       = {12},
  publisher    = {AIP Publishing},
  title        = {{Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag}},
  doi          = {10.1063/5.0171888},
  volume       = {13},
  year         = {2023},
}

@article{13274,
  abstract     = {Viscous flows through pipes and channels are steady and ordered until, with increasing velocity, the laminar motion catastrophically breaks down and gives way to turbulence. How this apparently discontinuous change from low- to high-dimensional motion can be rationalized within the framework of the Navier-Stokes equations is not well understood. Exploiting geometrical properties of transitional channel flow we trace turbulence to far lower Reynolds numbers (Re) than previously possible and identify the complete path that reversibly links fully turbulent motion to an invariant solution. This precursor of turbulence destabilizes rapidly with Re, and the accompanying explosive increase in attractor dimension effectively marks the transition between deterministic and de facto stochastic dynamics.},
  author       = {Paranjape, Chaitanya S and Yalniz, Gökhan and Duguet, Yohann and Budanur, Nazmi B and Hof, Björn},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  keywords     = {General Physics and Astronomy},
  number       = {3},
  publisher    = {American Physical Society},
  title        = {{Direct path from turbulence to time-periodic solutions}},
  doi          = {10.1103/physrevlett.131.034002},
  volume       = {131},
  year         = {2023},
}

@article{13278,
  abstract     = {We present a numerical analysis of spin-1/2 fermions in a one-dimensional harmonic potential in the presence of a magnetic point-like impurity at the center of the trap. The model represents a few-body analogue of a magnetic impurity in the vicinity of an s-wave superconductor. Already for a few particles we find a ground-state level crossing between sectors with different fermion parities. We interpret this crossing as a few-body precursor of a quantum phase transition, which occurs when the impurity "breaks" a Cooper pair. This picture is further corroborated by analyzing density-density correlations in momentum space. Finally, we discuss how the system may be realized with existing cold-atoms platforms.},
  author       = {Rammelmüller, Lukas and Huber, David and Čufar, Matija and Brand, Joachim and Hammer, Hans-Werner and Volosniev, Artem},
  issn         = {2542-4653},
  journal      = {SciPost Physics},
  keywords     = {General Physics and Astronomy},
  number       = {1},
  publisher    = {SciPost Foundation},
  title        = {{Magnetic impurity in a one-dimensional few-fermion system}},
  doi          = {10.21468/scipostphys.14.1.006},
  volume       = {14},
  year         = {2023},
}

@article{13346,
  abstract     = {The self-assembly of nanoparticles driven by small molecules or ions may produce colloidal superlattices with features and properties reminiscent of those of metals or semiconductors. However, to what extent the properties of such supramolecular crystals actually resemble those of atomic materials often remains unclear. Here, we present coarse-grained molecular simulations explicitly demonstrating how a behavior evocative of that of semiconductors may emerge in a colloidal superlattice. As a case study, we focus on gold nanoparticles bearing positively charged groups that self-assemble into FCC crystals via mediation by citrate counterions. In silico ohmic experiments show how the dynamically diverse behavior of the ions in different superlattice domains allows the opening of conductive ionic gates above certain levels of applied electric fields. The observed binary conductive/nonconductive behavior is reminiscent of that of conventional semiconductors, while, at a supramolecular level, crossing the “band gap” requires a sufficient electrostatic stimulus to break the intermolecular interactions and make ions diffuse throughout the superlattice’s cavities.},
  author       = {Lionello, Chiara and Perego, Claudio and Gardin, Andrea and Klajn, Rafal and Pavan, Giovanni M.},
  issn         = {1936-086X},
  journal      = {ACS Nano},
  keywords     = {General Physics and Astronomy, General Engineering, General Materials Science},
  number       = {1},
  pages        = {275--287},
  publisher    = {American Chemical Society},
  title        = {{Supramolecular semiconductivity through emerging ionic gates in ion–nanoparticle superlattices}},
  doi          = {10.1021/acsnano.2c07558},
  volume       = {17},
  year         = {2023},
}

@article{13989,
  abstract     = {Characterizing and controlling entanglement in quantum materials is crucial for the development of next-generation quantum technologies. However, defining a quantifiable figure of merit for entanglement in macroscopic solids is theoretically and experimentally challenging. At equilibrium the presence of entanglement can be diagnosed by extracting entanglement witnesses from spectroscopic observables and a nonequilibrium extension of this method could lead to the discovery of novel dynamical phenomena. Here, we propose a systematic approach to quantify the time-dependent quantum Fisher information and entanglement depth of transient states of quantum materials with time-resolved resonant inelastic x-ray scattering. Using a quarter-filled extended Hubbard model as an example, we benchmark the efficiency of this approach and predict a light-enhanced many-body entanglement due to the proximity to a phase boundary. Our work sets the stage for experimentally witnessing and controlling entanglement in light-driven quantum materials via ultrafast spectroscopic measurements.},
  author       = {Hales, Jordyn and Bajpai, Utkarsh and Liu, Tongtong and Baykusheva, Denitsa Rangelova and Li, Mingda and Mitrano, Matteo and Wang, Yao},
  issn         = {2041-1723},
  journal      = {Nature Communications},
  keywords     = {General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry, Multidisciplinary},
  publisher    = {Springer Nature},
  title        = {{Witnessing light-driven entanglement using time-resolved resonant inelastic X-ray scattering}},
  doi          = {10.1038/s41467-023-38540-3},
  volume       = {14},
  year         = {2023},
}

@article{13990,
  abstract     = {Many-body entanglement in condensed matter systems can be diagnosed from equilibrium response functions through the use of entanglement witnesses and operator-specific quantum bounds. Here, we investigate the applicability of this approach for detecting entangled states in quantum systems driven out of equilibrium. We use a multipartite entanglement witness, the quantum Fisher information, to study the dynamics of a paradigmatic fermion chain undergoing a time-dependent change of the Coulomb interaction. Our results show that the quantum Fisher information is able to witness distinct signatures of multipartite entanglement both near and far from equilibrium that are robust against decoherence. We discuss implications of these findings for probing entanglement in light-driven quantum materials with time-resolved optical and x-ray scattering methods.},
  author       = {Baykusheva, Denitsa Rangelova and Kalthoff, Mona H. and Hofmann, Damian and Claassen, Martin and Kennes, Dante M. and Sentef, Michael A. and Mitrano, Matteo},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  keywords     = {General Physics and Astronomy},
  number       = {10},
  publisher    = {American Physical Society},
  title        = {{Witnessing nonequilibrium entanglement dynamics in a strongly correlated fermionic chain}},
  doi          = {10.1103/physrevlett.130.106902},
  volume       = {130},
  year         = {2023},
}

@article{14032,
  abstract     = {Arrays of Josephson junctions are governed by a competition between superconductivity and repulsive Coulomb interactions, and are expected to exhibit diverging low-temperature resistance when interactions exceed a critical level. Here we report a study of the transport and microwave response of Josephson arrays with interactions exceeding this level. Contrary to expectations, we observe that the array resistance drops dramatically as the temperature is decreased—reminiscent of superconducting behaviour—and then saturates at low temperature. Applying a magnetic field, we eventually observe a transition to a highly resistive regime. These observations can be understood within a theoretical picture that accounts for the effect of thermal fluctuations on the insulating phase. On the basis of the agreement between experiment and theory, we suggest that apparent superconductivity in our Josephson arrays arises from melting the zero-temperature insulator.},
  author       = {Mukhopadhyay, Soham and Senior, Jorden L and Saez Mollejo, Jaime and Puglia, Denise and Zemlicka, Martin and Fink, Johannes M and Higginbotham, Andrew P},
  issn         = {1745-2481},
  journal      = {Nature Physics},
  keywords     = {General Physics and Astronomy},
  pages        = {1630--1635},
  publisher    = {Springer Nature},
  title        = {{Superconductivity from a melted insulator in Josephson junction arrays}},
  doi          = {10.1038/s41567-023-02161-w},
  volume       = {19},
  year         = {2023},
}

@article{14246,
  abstract     = {The model of a ring threaded by the Aharonov-Bohm flux underlies our understanding of a coupling between gauge potentials and matter. The typical formulation of the model is based upon a single particle picture, and should be extended when interactions with other particles become relevant. Here, we illustrate such an extension for a particle in an Aharonov-Bohm ring subject to interactions with a weakly interacting Bose gas. We show that the ground state of the system can be described using the Bose-polaron concept—a particle dressed by interactions with a bosonic environment. We connect the energy spectrum to the effective mass of the polaron, and demonstrate how to change currents in the system by tuning boson-particle interactions. Our results suggest the Aharonov-Bohm ring as a platform for studying coherence and few- to many-body crossover of quasi-particles that arise from an impurity immersed in a medium.},
  author       = {Brauneis, Fabian and Ghazaryan, Areg and Hammer, Hans-Werner and Volosniev, Artem},
  issn         = {2399-3650},
  journal      = {Communications Physics},
  keywords     = {General Physics and Astronomy},
  publisher    = {Springer Nature},
  title        = {{Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux}},
  doi          = {10.1038/s42005-023-01281-2},
  volume       = {6},
  year         = {2023},
}

@article{12113,
  abstract     = {The power factor of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) film can be significantly improved by optimizing the oxidation level of the film in oxidation and reduction processes. However, precise control over the oxidation and reduction effects in PEDOT:PSS remains a challenge, which greatly sacrifices both S and σ. Here, we propose a two-step post-treatment using a mixture of ethylene glycol (EG) and Arginine (Arg) and sulfuric acid (H2SO4) in sequence to engineer high-performance PEDOT:PSS thermoelectric films. The high-polarity EG dopant removes the excess non-ionized PSS and induces benzenoid-to-quinoid conformational change in the PEDOT:PSS films. In particular, basic amino acid Arg tunes the oxidation level of PEDOT:PSS and prevents the films from over-oxidation during H2SO4 post-treatment, leading to increased S. The following H2SO4 post-treatment further induces highly orientated lamellar stacking microstructures to increase σ, yielding a maximum power factor of 170.6 μW m−1 K−2 at 460 K. Moreover, a novel trigonal-shape thermoelectric device is designed and assembled by the as-prepared PEDOT:PSS films in order to harvest heat via a vertical temperature gradient. An output power density of 33 μW cm−2 is generated at a temperature difference of 40 K, showing the potential application for low-grade wearable electronic devices.},
  author       = {Zhang, Li and Liu, Xingyu and Wu, Ting and Xu, Shengduo and Suo, Guoquan and Ye, Xiaohui and Hou, Xiaojiang and Yang, Yanling and Liu, Qingfeng and Wang, Hongqiang},
  issn         = {0169-4332},
  journal      = {Applied Surface Science},
  keywords     = {Surfaces, Coatings and Films, Condensed Matter Physics, Surfaces and Interfaces, General Physics and Astronomy, General Chemistry},
  publisher    = {Elsevier},
  title        = {{Two-step post-treatment to deliver high performance thermoelectric device with vertical temperature gradient}},
  doi          = {10.1016/j.apsusc.2022.156101},
  volume       = {613},
  year         = {2023},
}

@article{12165,
  abstract     = {It may come as a surprise that a phenomenon as ubiquitous and prominent as the transition from laminar to turbulent flow has resisted combined efforts by physicists, engineers and mathematicians, and remained unresolved for almost one and a half centuries. In recent years, various studies have proposed analogies to directed percolation, a well-known universality class in statistical mechanics, which describes a non-equilibrium phase transition from a fluctuating active phase into an absorbing state. It is this unlikely relation between the multiscale, high-dimensional dynamics that signify the transition process in virtually all flows of practical relevance, and the arguably most basic non-equilibrium phase transition, that so far has mainly been the subject of model studies, which I review in this Perspective.},
  author       = {Hof, Björn},
  issn         = {2522-5820},
  journal      = {Nature Reviews Physics},
  keywords     = {General Physics and Astronomy},
  pages        = {62--72},
  publisher    = {Springer Nature},
  title        = {{Directed percolation and the transition to turbulence}},
  doi          = {10.1038/s42254-022-00539-y},
  volume       = {5},
  year         = {2023},
}

@article{12697,
  abstract     = {Models for same-material contact electrification in granular media often rely on a local charge-driving parameter whose spatial variations lead to a stochastic origin for charge exchange. Measuring the charge transfer from individual granular spheres after contacts with substrates of the same material, we find instead a “global” charging behavior, coherent over the sample’s whole surface. Cleaning and baking samples fully resets charging magnitude and direction, which indicates the underlying global parameter is not intrinsic to the material, but acquired from its history. Charging behavior is randomly and irreversibly affected by changes in relative humidity, hinting at a mechanism where adsorbates, in particular, water, are fundamental to the charge-transfer process.},
  author       = {Grosjean, Galien M and Waitukaitis, Scott R},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  keywords     = {General Physics, Electrostatics, Triboelectricity, Soft Matter, Acoustic Levitation, Granular Materials},
  number       = {9},
  publisher    = {American Physical Society},
  title        = {{Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media}},
  doi          = {10.1103/physrevlett.130.098202},
  volume       = {130},
  year         = {2023},
}

@article{12723,
  abstract     = {Lead halide perovskites enjoy a number of remarkable optoelectronic properties. To explain their origin, it is necessary to study how electromagnetic fields interact with these systems. We address this problem here by studying two classical quantities: Faraday rotation and the complex refractive index in a paradigmatic perovskite CH3NH3PbBr3 in a broad wavelength range. We find that the minimal coupling of electromagnetic fields to the k⋅p Hamiltonian is insufficient to describe the observed data even on the qualitative level. To amend this, we demonstrate that there exists a relevant atomic-level coupling between electromagnetic fields and the spin degree of freedom. This spin-electric coupling allows for quantitative description of a number of previous as well as present experimental data. In particular, we use it here to show that the Faraday effect in lead halide perovskites is dominated by the Zeeman splitting of the energy levels and has a substantial beyond-Becquerel contribution. Finally, we present general symmetry-based phenomenological arguments that in the low-energy limit our effective model includes all basis coupling terms to the electromagnetic field in the linear order.},
  author       = {Volosniev, Artem and Shiva Kumar, Abhishek and Lorenc, Dusan and Ashourishokri, Younes and Zhumekenov, Ayan A. and Bakr, Osman M. and Lemeshko, Mikhail and Alpichshev, Zhanybek},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  keywords     = {General Physics and Astronomy},
  number       = {10},
  publisher    = {American Physical Society},
  title        = {{Spin-electric coupling in lead halide perovskites}},
  doi          = {10.1103/physrevlett.130.106901},
  volume       = {130},
  year         = {2023},
}

@article{10851,
  abstract     = {Superconductor-semiconductor hybrid devices are at the heart of several proposed approaches to quantum information processing, but their basic properties remain to be understood. We embed a twodimensional Al-InAs hybrid system in a resonant microwave circuit, probing the breakdown of superconductivity due to an applied magnetic field. We find a fingerprint from the two-component nature of the hybrid system, and quantitatively compare with a theory that includes the contribution of intraband p±ip pairing in the InAs, as well as the emergence of Bogoliubov-Fermi surfaces due to magnetic field. Separately resolving the Al and InAs contributions allows us to determine the carrier density and mobility in the InAs.},
  author       = {Phan, Duc T and Senior, Jorden L and Ghazaryan, Areg and Hatefipour, M. and Strickland, W. M. and Shabani, J. and Serbyn, Maksym and Higginbotham, Andrew P},
  issn         = {1079-7114},
  journal      = {Physical Review Letters},
  keywords     = {General Physics and Astronomy},
  number       = {10},
  publisher    = {American Physical Society},
  title        = {{Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit}},
  doi          = {10.1103/physrevlett.128.107701},
  volume       = {128},
  year         = {2022},
}

@article{11373,
  abstract     = {The actin-homologue FtsA is essential for E. coli cell division, as it links FtsZ filaments in the Z-ring to transmembrane proteins. FtsA is thought to initiate cell constriction by switching from an inactive polymeric to an active monomeric conformation, which recruits downstream proteins and stabilizes the Z-ring. However, direct biochemical evidence for this mechanism is missing. Here, we use reconstitution experiments and quantitative fluorescence microscopy to study divisome activation in vitro. By comparing wild-type FtsA with FtsA R286W, we find that this hyperactive mutant outperforms FtsA WT in replicating FtsZ treadmilling dynamics, FtsZ filament stabilization and recruitment of FtsN. We could attribute these differences to a faster exchange and denser packing of FtsA R286W below FtsZ filaments. Using FRET microscopy, we also find that FtsN binding promotes FtsA self-interaction. We propose that in the active divisome FtsA and FtsN exist as a dynamic copolymer that follows treadmilling filaments of FtsZ.},
  author       = {Radler, Philipp and Baranova, Natalia S. and Dos Santos Caldas, Paulo R and Sommer, Christoph M and Lopez Pelegrin, Maria D and Michalik, David and Loose, Martin},
  issn         = {2041-1723},
  journal      = {Nature Communications},
  keywords     = {General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry},
  publisher    = {Springer Nature},
  title        = {{In vitro reconstitution of Escherichia coli divisome activation}},
  doi          = {10.1038/s41467-022-30301-y},
  volume       = {13},
  year         = {2022},
}