87 citations · 573 across the 28 of their papers we have counts for
26 papers · 1 filter
Scale invariance of a spherical unitary Fermi gas
Lu Wang, Xiangchuan Yan, Jing Min +5
A unitary Fermi gas in an isotropic harmonic trap is predicted to show scale and conformal symmetry that have important consequences in its thermodynamic and dynamical properties.…
Dynamic structure factor of two-dimensional Fermi superfluid with Rashba spin-orbit coupling
Huaisong Zhao, Xu Yan, Shi-Guo Peng +1
We theoretically calculate the dynamic structure factor of two-dimensional Rashba-type spinorbit coupled (SOC) Fermi superfluid with random phase approximation, and analyse the mai…
Dynamic structure factor of one-dimensional Fermi superfluid with spin-orbit coupling
Zheng Gao, Lianyi He, Huaisong Zhao +2
We theoretically calculate the density dynamic structure factor of one-dimensional Fermi superfluid with Raman-type spin-orbit coupling, and analyze its main dynamical character du…
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…
Universal scattering phase shift in the presence of spin-orbit coupling
Cai-Xia Zhang, Shi-Guo Peng
Scattering phase shift, as a key parameter in scattering theory, plays an important role in characterizing low-energy collisions between ultracold atoms. In this work, we theoretic…
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…
Dynamical generation of solitons in one-dimensional Fermi superfluids with and without spin-orbit coupling
Lingchii Kong, Genwang Fan, Shi-Guo Peng +3
We theoretically generalize a systematic language to describe the phase-imprinting technique to investigate the dynamical generation of solitons in a one-dimensional Raman-type spi…
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…
Universal relations for spin-orbit-coupled Fermi gases in two and three dimensions
Cai-Xia Zhang, Shi-Guo Peng, Kaijun Jiang
We present a comprehensive derivation of a set of universal relations for spin-orbit-coupled Fermi gases in three or two dimension, which follow from the short-range behavior of th…
Angular Stripe Phase in Spin-Orbital-Angular-Momentum Coupled Bose Condensates
Xiao-Long Chen, Shi-Guo Peng, Peng Zou +2
We propose that novel superfluid with supersolid-like properties - angular stripe phase - can be realized in a pancake-like spin-1/2 Bose gas with spin-orbital-angular-momentum cou…
Expansion dynamics of a spherical Bose-Einstein condensate
Ruizong Li, Tianyou Gao, Dongfang Zhang +5
We experimentally and theoretically observe the expansion behaviors of a spherical Bose-Einstein condensate. A rubidium condensate is produced in an isotropic optical dipole trap w…
Observation of quantum phase transition in spin-orbital-angular-momentum coupled Bose-Einstein condensate
Dongfang Zhang, Tianyou Gao, Peng Zou +8
Orbital angular momentum (OAM) of light represents a fundamental optical freedom that can be exploited to manipulate quantum state of atoms. In particular, it can be used to realiz…
Observation of phonon parametric down-conversion in a spherical Bose-Einstein condensate
Tianyou Gao, Jian-Song Pan, Dongfang Zhang +8
We report the observation of parametric down-conversion of phonons in a spherical Bose-Einstein condensate. The spherical symmetry, which is crucial for observing this phenomenon,…
Contact theory for spin-orbit-coupled Fermi gases
Shi-Guo Peng, Cai-Xia Zhang, Shina Tan +1
We develop the contact theory for spin-orbit-coupled Fermi gases. By using a perturbation method, we derive analytically the universal two-body behavior at short distance, which do…
Universal relations for a spin-polarized Fermi gas in two dimensions
Shi-Guo Peng
We derive the full set of universal relations for spin-polarized Fermi gases with -wave interaction in two dimensions, simply using the short-range asymptotic behavior of fermio…
Large-momentum distribution of a polarized Fermi gas and p-wave contacts
Shi-Guo Peng, Xia-Ji Liu, Hui Hu
We present a derivation of the adiabatic energy relations as well as the large momentum distribution of a polarized Fermi gas near p-wave Feshbach resonances. The leading asymptoti…
Strongly correlated Fermi superfluid near an orbital Feshbach resonance: Stability, equation of state and Leggett mode
Lianyi He, Jia Wang, Shi-Guo Peng +2
We theoretically study the superfluid phase of a strongly correlated Yb Fermi gas near its orbital Feshbach resonance, by developing a quantitative pair-fluctuation theory…
Two-body state with p-wave interaction in one-dimensional waveguides under transversely anisotropic confinement
Tian-You Gao, Shi-Guo Peng, Kaijun Jiang
We theoretically study two atoms with -wave interaction in a one-dimensional waveguide, and investigate how the transverse anisotropy of the confinement affects the two-body sta…
Virial expansion of a harmonically trapped Fermi gas across a narrow Feshbach resonance
Shi-Guo Peng, Shuo-Han Zhao, Kaijun Jiang
We theoretically investigate the high-temperature thermodynamics of a harmonically trapped Fermi gas across a narrow Feshbach resonance, by using the second-order quantum virial ex…
Manipulation of p-wave scattering of cold atoms in low dimensions using the magnetic field vector
Shi-Guo Peng, Shina Tan, Kaijun Jiang
It is well-known that the magnetic Feshbach resonances of cold atoms are sensitive to the magnitude of the external magnetic field. Much less attention has been paid to the directi…
Two-channel model description of confinement-induced Feshbach molecules
Shi-Guo Peng, Hui Hu, Xia-Ji Liu +1
Using a two-channel model, we investigate theoretically the binding energy of confinement-induced Feshbach molecules in two- and one-dimensional ultracold atomic systems, near a Fe…
Momentum-resolved radio-frequency spectroscopy of a spin-orbit coupled atomic Fermi gas near a Feshbach resonance in harmonic traps
Shi-Guo Peng, Xia-Ji Liu, Hui Hu +1
We theoretically investigate the momentum-resolved radio-frequency spectroscopy of a harmonically trapped atomic Fermi gas near a Feshbach resonance in the presence of equal Rashba…
Radio-frequency spectroscopy of weakly bound molecules in spin-orbit coupled atomic Fermi gases
Hui Hu, Han Pu, Jing Zhang +2
We investigate theoretically radio-frequency spectroscopy of weakly bound molecules in an ultracold spin-orbit-coupled atomic Fermi gas. We consider two cases with either equal Ras…
High temperature thermodynamics of strongly interacting s-wave and p-wave Fermi gases in a harmonic trap
Shi-Guo Peng, Shi-Qun Li, Peter D Drummond +1
We theoretically investigate the high-temperature thermodynamics of a strongly interacting trapped Fermi gas near either s-wave or p-wave Feshbach resonances, using a second order…