An ultracold heavy Rydberg system formed from ultra-long-range molecules bound in a stairwell potential by F Hummel, P Schmelcher, H Ott, H R Sadeghpour

“…We propose a scheme to realize a heavy Rydberg system (HRS), a bound pair of oppositely charged ions, from a gas of ultracold atoms. The intermediate step to achieve large internuclear separations is the creation of a unique class of ultra-long-range Rydberg molecules bound in a stairwell potential energy curve. …”
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Rotational Dynamics Induced by Low-Energy Binary Collisions of Quantum Droplets by J. E. Alba-Arroyo, S. F. Caballero-Benitez, R. Jáuregui

“…A theoretical analysis of the rotational dynamics induced by off-axis binary collisions of quantum droplets constituted by ultracold atoms is reported. We focus on quantum droplets formed by degenerate dilute Bose gases made from binary mixtures of alkaline atoms under feasible experimental conditions. …”
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Observation of frustrated chiral dynamics in an interacting triangular flux ladder by Yuqing Li, Huiying Du, Yunfei Wang, Junjun Liang, Liantuan Xiao, Wei Yi, Jie Ma, Suotang Jia

“…Engineering artificial gauge fields in ultracold atoms offers a highly controllable access to the exotic many-body phenomena in these systems, and has stimulated intense interest. …”
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Correlated Chern insulators in two-dimensional Raman lattices: A cold-atom regularization of strongly coupled four-Fermi field theories by L. Ziegler, E. Tirrito, M. Lewenstein, S. Hands, A. Bermudez

“…We show that synthetic spin-orbit coupling for ultracold atoms in optical Raman potentials can be exploited to build versatile quantum simulators of correlated Chern insulators connected to strongly coupled four-Fermi field theories similar to the Gross-Neveu model in (2+1) dimensions. …”
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Magnetic field dependent interactions in an ultracold Li–Yb(3P2) mixture by William Dowd, Richard J Roy, Rajendra K Shrestha, Alexander Petrov, Constantinos Makrides, Svetlana Kotochigova, Subhadeep Gupta

“…Inelastic collisional properties of ultracold atomic systems exhibit resonant behavior in the vicinity of such resonances, providing a detection signature. …”
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Machine learning of the XY model on a spherical Fibonacci lattice by Chen-Hui Song, Qu-Cheng Gao, Xu-Yang Hou, Xin Wang, Zheng Zhou, Yan He, Hao Guo, Chih-Chun Chien

“…Our results provide reliable predictions for quantum simulators using polaritons or future space-based experiments on ultracold atoms in microgravity.…”
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Direct measurement of polariton-polariton interaction strength in the Thomas-Fermi regime of exciton-polariton condensation by Estrecho, E., Gao, T., Bobrovska, N., Comber-Todd, D., Fraser, M. D., Steger, M., West, K., Pfeiffer, L. N., Levinsen, J., Parish, M. M., Liew, Timothy Chi Hin, Matuszewski, M., Snoke, D. W., Truscott, A. G., Ostrovskaya, E. A.

“…The Thomas-Fermi regime has previously been demonstrated only in ultracold atomic gases in thermal equilibrium. In a nonequilibrium exciton-polariton system, this regime offers a novel opportunity to study interaction-driven effects unmasked by an incoherent reservoir.…”
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Weyl points and topological nodal superfluids in a face-centered-cubic optical lattice by Lang, Li-Jun, Zhang, Shao-Liang, Law, K. T., Zhou, Qi

“…We point out that a face-centered-cubic (fcc) optical lattice, which can be realized by a simple scheme using three lasers, provides one a highly controllable platform for creating Weyl points and topological nodal superfluids in ultracold atoms. In noninteracting systems, Weyl points automatically arise in the Floquet band structure when shaking such fcc lattices, and sophisticated design of the tunneling is not required. …”
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Probing warm dense lithium by inelastic X-ray scattering by Saiz, E, Gregori, G, Gericke, DO, Vorberger, J, Barbrel, B, Clarke, R, Freeman, R, Glenzer, S, Khattak, F, Koenig, M, Landen, O, Neely, D, Neumayer, P, Notley, M, Pelka, A, Price, D, Roth, M, Schollmeier, M, Spindloe, C, Weber, R, van Woerkom, L, Wuensch, K, Riley, D

“…One of the grand challenges of contemporary physics is understanding strongly interacting quantum systems comprising such diverse examples as ultracold atoms in traps, electrons in high-temperature superconductors and nuclear matter. …”

Complex coherent quantum many-body dynamics through dissipation by Buča, B, Tindall, J, Jaksch, D

“…We discuss the possibility of engineering such complex dynamics with fermionic ultracold atoms in optical lattices.…”

High-flux source system for matter-wave interferometry exploiting tunable interactions by A. Herbst, T. Estrampes, H. Albers, V. Vollenkemper, K. Stolzenberg, S. Bode, E. Charron, E. M. Rasel, N. Gaaloul, D. Schlippert

“…Here we report on a high-flux source of ultracold atoms with free expansion rates near the Heisenberg limit directly upon release from the trap. …”
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Optical spin conductivity in ultracold quantum gases by Yuta Sekino, Hiroyuki Tajima, Shun Uchino

“…We show that the optical spin conductivity, which is a small ac response of a bulk spin current and elusive in condensed matter systems, can be measured in ultracold atoms. We demonstrate that this conductivity contains rich information on quantum states by analyzing experimentally achievable systems such as a spin-1/2 superfluid Fermi gas, a spin-1 Bose-Einstein condensate, and a Tomonaga-Luttinger liquid. …”
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Optical lattice experiments at unobserved conditions with generative adversarial deep learning by Corneel Casert, Kyle Mills, Tom Vieijra, Jan Ryckebusch, Isaac Tamblyn

“…Optical lattice experiments with ultracold atoms allow for the experimental realization of contemporary problems in many-body physics. …”
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Finite-temperature spin dynamics of a two-dimensional Bose-Bose atomic mixture by Arko Roy, Miki Ota, Alessio Recati, Franco Dalfovo

“…We examine the role of thermal fluctuations in uniform two-dimensional binary Bose mixtures of dilute ultracold atomic gases. We use a mean-field Hartree-Fock theory to derive analytical predictions for the miscible-immiscible transition. …”
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Chiral orbital order of interacting bosons without higher bands by Marco Di Liberto, Nathan Goldman

“…Ultracold atoms loaded into higher Bloch bands provide an elegant setting for realizing many-body quantum states that spontaneously break time-reversal symmetry through the formation of chiral orbital order. …”
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Excited-state quantum phase transitions in spin-orbit-coupled Bose gases by J. Cabedo, A. Celi

“…The phases are characterized by the behavior of the spatial density modulations, or stripes, induced by spin-orbit coupling, and can in principle be measured in current state-of-the-art experiments with ultracold atoms. Conversely, we show that the properties of the excited phase can be exploited to prepare stripe states with large and stable density modulations.…”
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Quantum wakes in lattice fermions by Matthew Wampler, Peter Schauss, Eugene B. Kolomeisky, Israel Klich

“…Here, we investigate the effect of moving disturbances on a Fermi lattice gas of ultracold atoms and analyze the novel types of wake patterns that may occur. …”
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Observation of Collisions between Two Ultracold Ground-State CaF Molecules by Cheuk, Lawrence W., Anderegg, Loïc, Bao, Yicheng, Burchesky, Sean, Yu, Scarlett S., Ketterle, Wolfgang, Ni, Kang-Kuen, Doyle, John M.

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Amplification of Local Instabilities in a Bose-Einstein Condensate with Attractive Interactions by Chin, J. K., Vogels, J. M., Ketterle, Wolfgang

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Towards a quantum gas microscope for fermionic atoms by Ramasesh, Vinay (Vinay V.)

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