170 citations · 551 across the 15 of their papers we have counts for
15 papers
Nonreciprocal and long-range three-body interactions in Bose-Einstein condensates induced by optical feedback
Yi-Qing Zhang, Liang-Jun He, Han Pu +2
We propose generating long-range and nonreciprocal three-body interactions in quantum gases via optical feedback. By placing a quasi-two-dimensional Bose-Einstein condensate (BEC)…
Nonlinearity-induced dynamical self-organized twisted-bilayer lattices in Bose-Einstein condensates
Rui Tian, Yue Zhang, Tianhao Wu +4
Creating crystal bilayers twisted with respect to each other would lead to large periodic supercell structures, which can support a wide range of novel electron correlated phenomen…
Metastable Patterns in one- and two-component dipolar Bose-Einstein Condensates
Yong-Chang Zhang, Thomas Pohl, Fabian Maucher
In this paper we study metastable states in single- and two-component dipolar Bose-Einstein condensates. We show that this system supports a rich spectrum of symmetries that are re…
Localization-delocalization Transition in an electromagnetically induced photonic lattice
Rui Tian, Shuai Li, Maksims Arzamasovs +3
We investigate the localization-delocalization transition (LDT) in an electromagnetically induced photonic lattice. A four-level tripod-type scheme in atomic ensembles is proposed…
Nonequilibrium steady state in a large magneto-optical trap
Marius Gaudesius, Yong-Chang Zhang, Thomas Pohl +2
Considering light-mediated long-range interactions between cold atoms in a magneto-optical trap (MOT), we present numerical evidence of a nonequilibrium steady state (NESS) for suf…
Phases of supersolids in confined dipolar Bose-Einstein condensates
Yong-Chang Zhang, Thomas Pohl, Fabian Maucher
Dipolar Bose-Einstein condensates represent a powerful platform for the exploration of quantum many-body phenomena arising from long-range interactions. A series of recent experime…
Self-bound droplet clusters in laser-driven Bose-Einstein condensates
Yong-Chang Zhang, Valentin Walther, Thomas Pohl
We investigate a two-dimensional Bose-Einstein condensate that is optically driven via a retro-reflecting mirror, forming a single optical feedback loop. This induces a peculiar ty…
Instability threshold in a large balanced magneto-optical trap
Marius Gaudesius, Robin Kaiser, Guillaume Labeyrie +2
Large clouds of cold atoms prepared in a magneto-optical trap can develop spatio-temporal instabilities when the frequency of the trapping lasers is brought close to the atomic res…
Blockade-induced resonant enhancement of the optical nonlinearity in a Rydberg medium
Annika Tebben, Clément Hainaut, Valentin Walther +4
We predict a resonant enhancement of the nonlinear optical response of an interacting Rydberg gas under conditions of electromagnetically induced transparency. The enhancement orig…
Supersolidity around a critical point in dipolar Bose Einstein condensates
Yong-Chang Zhang, Fabian Maucher, Thomas Pohl
We explore spatial symmetry breaking of a dipolar Bose Einstein condensate in the thermodynamic limit and reveal a critical point in the phase diagram at which crystallization occu…
Long-range interactions and symmetry-breaking in quantum gases through optical feedback
Yong-Chang Zhang, Valentin Walther, Thomas Pohl
We consider a quasi two-dimensional atomic Bose Einstein condensate interacting with a near-resonant laser field that is back-reflected onto the condensate by a planar mirror. We s…
Cavity assisted single- and two-mode spin-squeezed states via phase-locked atom-photon coupling
Yong-Chang Zhang, Xiang-Fa Zhou, Xingxiang Zhou +2
We propose a scheme to realize the two-axis counter-twisting spin-squeezing Hamiltonian inside an optical cavity with the aid of phase-locked atom-photon coupling. By careful analy…
Stable Solitons in Three Dimensional Free Space: Self-Trapped Bose-Einstein Condensates with Spin-Orbit Coupling
Yong-Chang Zhang, Zheng-Wei Zhou, Boris A. Malomed +1
By means of variational methods and systematic numerical analysis, we demonstrate the existence of stable solitons in three-dimensional (3D) free space, in the context of binary at…
Two-component Bose-Hubbard model in an array of cavity polaritons
Yong-Chang Zhang, Xiang-Fa Zhou, Xingxiang Zhou +3
We propose a scheme which can realize an extended two-component Bose-Hubbard model using polaritons confined in an array of optical cavities. In addition to the density-dependent i…
Two-component polariton condensate in optical microcavity
Yong-Chang Zhang, Xiang-Fa Zhou, Guang-Can Guo +3
We present a scheme for engineering the extended two-component Bose-Hubbard model using polariton condensate supported by optical microcavity. Compared to the usual two-component B…