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20032026
most citedGate-tunable Room-temperature Ferromagnetism in Two-dimensional FeGeTe

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24 papers · 1 filter

cond-mat.quant-gas2024

Proposal for realizing and probing topological crystalline insulators in optical lattices

Jing-Xin Liu, Jian-Te Wang, Shi-Liang Zhu

We develop a lattice model which exhibits topological transitions from topological insulators to mirror symmetry-protected topological crystalline insulators by introducing a…

cond-mat.quant-gas2024★ 9 cited

Synthetic non-Abelian topological charges in ultracold atomic gases

Qi-Dong Wang, Yan-Qing Zhu, Shi-Liang Zhu +1

Topological phases associated with non-Abelian charges can exhibit a distinguished bulk-edge correspondence compared with Abelian phases, although elucidating this relationship rem…

cond-mat.quant-gas2021★ 20 cited

Damping transition in an open generalized Aubry-André-Harper model

Peng He, Yu-Guo Liu, Jian-Te Wang +1

We study the damping dynamics of the single-particle correlation for an open system under periodic and aperiodic order, which is dominated by the Lindblad master equation. In the a…

cond-mat.quant-gas2020★ 80 cited

Observation of topological phase with critical localization in a quasi-periodic lattice

Teng Xiao, Dizhou Xie, Zhaoli Dong +3

Disorder and localization have dramatic influence on the topological properties of a quantum system. While strong disorder can close the band gap thus depriving topological materia…

cond-mat.quant-gas2020★ 32 cited

Quantum Zeno effects across a parity-time symmetry breaking transition in atomic momentum space

Tao Chen, Wei Gou, Dizhou Xie +4

We experimentally study quantum Zeno effects in a parity-time (PT) symmetric cold atom gas periodically coupled to a reservoir. Based on the state-of-the-art control of inter-site…

cond-mat.quant-gas2020★ 12 cited

Spin-orbit coupled spin-1 Bose-Einstein condensate flow past an obstacle in the presence of a Zeeman field

Qing-Li Zhu, Lihua Pan, Jin An

We study the dynamics of a Rashba spin-orbit coupled spin-1 ferromagnetic Bose-Einstein condensate under a linear Zeeman magnetic field(ZF) disturbed by a moving obstacle. The Bogo…

cond-mat.quant-gas2020★ 217 cited

Tunable non-reciprocal quantum transport through a dissipative Aharonov-Bohm ring in ultracold atoms

Wei Gou, Tao Chen, Dizhou Xie +5

We report the experimental observation of tunable, non-reciprocal quantum transport of a Bose-Einstein condensate in a momentum lattice. By implementing a dissipative Aharonov-Bohm…

cond-mat.quant-gas2019★ 164 cited

Topological characterizations of an extended Su-Schrieffer-Heeger model

Dizhou Xie, Wei Gou, Teng Xiao +2

The Su-Schrieffer-Heeger (SSH) model perhaps is the easiest and the most basic model for topological excitations. Many variations and extensions of the SSH model have been proposed…

cond-mat.quant-gas2019★ 106 cited

Topological quantum walks in momentum space with a Bose-Einstein condensate

Dizhou Xie, Tian-Shu Deng, Teng Xiao +4

We report the experimental implementation of discrete-time topological quantum walks of a Bose-Einstein condensate in momentum space. Introducing stroboscopic driving sequences to…

cond-mat.quant-gas2019★ 6 cited

Quantum Adiabatic Doping with Incommensurate Optical Lattices

Jian Lin, Jue Nan, Yuchen Luo +2

Quantum simulations of Fermi-Hubbard models have been attracting considerable efforts in the optical lattice research, with the ultracold anti-ferromagnetic atomic phase reached at…

cond-mat.quant-gas2018★ 311 cited

Topological quantum matter with cold atoms

Dan-Wei Zhang, Yan-Qing Zhu, Y. X. Zhao +2

This is an introductory review of the physics of topological quantum matter with cold atoms. Topological quantum phases, originally discovered and investigated in condensed matter…

cond-mat.quant-gas2018★ 8 cited

Parallel multicomponent interferometer with a spinor Bose-Einstein condensate

Pengju Tang, Peng Peng, Zhihan Li +3

Atom interferometry with high visibility is of high demand for precision measurements. Here, a parallel multicomponent interferometer is achieved by preparing a spin- Bose-Einst…

cond-mat.quant-gas2018★ 11 cited

Finite Temperature Phase Transition in a Cross-Dimensional Triangular Lattice

Shengjie Jin, Xinxin Guo, Peng Peng +3

Atomic many-body phase transitions and quantum criticality have recently attracted much attention in non-standard optical lattices. Here we perform an experimental study of finite-…

cond-mat.quant-gas2018★ 40 cited

Observation of a dynamical sliding phase superfluid with P-band bosons

Linxiao Niu, Shengjie Jin, Xuzong Chen +2

Sliding phases have been long sought after in the context of coupled XY-models, as they are of relevance to various many-body systems such as layered superconductors, freestanding…

cond-mat.quant-gas2018★ 12 cited

Improved Silbey-Harris polaron ansatz for the spin-boson model

Shu He, Liwei Duan, Qing-Hu Chen

In this paper, the well-known Silbey-Harris (SH) polaron ansatz for the spin-boson model is improved by adding orthogonal displaced Fock states. The obtained results for the ground…

cond-mat.quant-gas2018★ 14 cited

Rotation-symmetry-enforced coupling of spin and angular momentum for p-orbital bosons

Yongqiang Li, Jianmin Yuan, Andreas Hemmerich +1

Intrinsic spin angular-momentum coupling of an electron has a relativistic quantum origin with the coupling arising from charged-orbits, which does not carry over to charge-neutral…

cond-mat.quant-gas2018

Surface excitations, shape deformation and the long-time behavior in a stirred Bose-Einstein condensate

Qing-Li Zhu, Jin An

The surface excitations, shape deformation and the formation of persistent current for a Gaussian obstacle potential rotating in an highly oblate Bose-Einstein condensate(BEC)are i…

cond-mat.quant-gas2017★ 4 cited

Bosonic Integer Quantum Hall States without Landau Levels on Square Lattice

Wanli Liu, Zhiyu Dong, Zhihuan Dong +3

We study an interacting two-component hard-core bosons on square lattice for which, in the presence of staggered magnetic flux, the ground state is a bosonic integer quantum Hall (…

cond-mat.quant-gas2017★ 70 cited

Emergent pseudospin-1 Maxwell fermions with a threefold degeneracy in optical lattices

Yan-Qing Zhu, Dan-Wei Zhang, Hui Yan +2

The discovery of relativistic spin-1/2 fermions such as Dirac and Weyl fermions in condensed-matter or artificial systems opens a new era in modern physics. An interesting but rare…

cond-mat.quant-gas2017★ 3 cited

Topological orbital superfluid with chiral d-wave order in a rotating optical lattice

Ningning Hao, Huaiming Guo, Ping Zhang

Topological superfluid is an exotic state of quantum matter that possesses a nodeless superfluid gap in the bulk and Andreev edge modes at the boundary of a finite system. Here, we…

cond-mat.quant-gas2017

Chiral Spin Condensation in a One-Dimensional Optical Lattice

Ying-Hai Wu, Xiaopeng Li, S. Das Sarma

We study a spinor (two-component) Bose gas confined in a one-dimensional double-valley optical lattice which has a double-well structure in momentum space. Based on field theory an…

cond-mat.quant-gas2016★ 27 cited

Dynamics of Weyl quasiparticles emerged in an optical lattice

Zhi Li, Huai-Qiang Wang, Dan-Wei Zhang +2

We investigate the dynamics of the Weyl quasiparticles emerged in an optical lattice where the topological Weyl semimental and trivial band insulator phases can be adjusted with th…

cond-mat.quant-gas2015★ 22 cited

Simulation and measurement of the fractional particle number in one-dimensional optical lattices

Dan-Wei Zhang, Feng Mei, Zheng-Yuan Xue +2

We propose a scheme to mimic and directly measure the fractional particle number in a generalized Su-Schrieffer-Heeger model with ultracold fermions in one-dimensional optical latt…

cond-mat.quant-gas2015★ 37 cited

Synthetic gauge fields stabilize a chiral spin liquid phase

Gang Chen, Kaden R. A. Hazzard, Ana Maria Rey +1

We calculate the phase diagram of the SU() Hubbard model describing fermionic alkaline earth atoms in a square optical lattice with on-average one atom per site, using a slave-r…