22 citations · 101 across the 11 of their papers we have counts for
8 papers · 1 filter
Spin-orbital-angular-momentum-coupled quantum gases
Shi-Guo Peng, Kaijun Jiang, Xiao-Long Chen +3
We briefly review the recent progress of theories and experiments on spin-orbital-angular-momentum (SOAM)-coupled quantum gases. The coupling between the intrinsic degree of freedo…
Molecular state in a spin-orbital-angular-momentum coupled Fermi gas
Yiwen Han, Shi-Guo Peng, Ke-Ji Chen +1
We study the two-body bound states in a spin-orbital-angular-momentum (SOAM) coupled quantum gas of fermions. Two different configurations are considered: an attractive -wave in…
Angular topological superfluid and topological vortex in an ultracold Fermi gas
Ke-Ji Chen, Fan Wu, Lianyi He +1
We show that pairing in an ultracold Fermi gas under spin-orbital-angular-momentum coupling (SOAMC) can acquire topological characters encoded in the quantized angular degrees of f…
Generating Giant Vortex in a Fermi Superfluid via Spin-Orbital-Angular-Momentum Coupling
Ke-Ji Chen, Fan Wu, Shi-Guo Peng +2
Spin-orbital-angular-momentum (SOAM) coupling has been realized in recent experiments of Bose-Einstein condensates [Chen et al., Phys. Rev. Lett. 121, 113204 (2018) and Zhang et al…
Ground-state phase diagram and excitation spectrum of a Bose-Einstein condensate with spin-orbital-angular-momentum coupling
Ke-Ji Chen, Fan Wu, Jianshen Hu +1
We investigate the ground-state phase diagram and excitation spectrum of an interacting spinor Bose-Einstein condensate with spin-orbital-angular-momentum (SOAM) coupling realized…
Unfolding multi-particle quantum correlations hidden in decoherence
Ke-Ji Chen, Ho Kwan Lau, Hon Ming Chan +2
Quantum coherence is a fundamental characteristic to distinguish quantum systems from their classical counterparts. Though quantum coherence persists in isolated non-interacting sy…
Signatures of Bose-Einstein condensation in an optical lattice
Ke-Ji Chen, Jingkun Wang, Wei Yi +1
We discuss typical experimental signatures for the Bose-Einstein condensation (BEC) of an ultracold Bose gas in an inhomogeneous optical lattice at finite temperature. Applying the…
Nematic ferromagnetism on the Lieb lattice
Ke-Ji Chen, Wei Zhang
We discuss the properties of possible ferromagnetic orders on the Lieb lattice. We show that the presence of a quadratic-flat band crossing point (QFBCP) at half filling will drama…