71 citations · 359 across the 23 of their papers we have counts for
23 papers
Observation of 2D Mott insulator and -superfluid quantum phase transition in shaking optical lattice
Jingxin Sun, Pengju Zhao, Zhongshu Hu +4
The Mott insulator and superfluid phase transition is one of the most prominent phenomena in ultracold atoms. In this work, we report the observation of a novel 2D quantum phase tr…
Simulation of classical Ising-like magnetism with a Mott insulator of paired atoms
Ren Liao, Jingxin Sun, Hui Li +8
Quantum simulation of the XXZ model with a two-component Bose or Fermi Hubbard model based on a Mott insulator background has been widely used in the investigations of quantum magn…
Ultracold Bose Mixtures with Spin-Dependent Fermion-Mediated Interactions
Renyuan Liao
We develop a functional integral formulation for binary Bose-Einstein condensates coupled to polarized fermions. We find that spin-dependent fermion-mediated interactions have dram…
Polarizing the Medium: Fermion-Mediated Interactions between Bosons
Dong-Chen Zheng, Lin Wen, Chun-Rong Ye +1
We consider a homogeneous mixture of bosons and polarized fermions. We find that long-range and attractive fermion-mediated interactions between bosons have dramatic effects on the…
Simulation of Dynamical Quantum Phase Transition of the 1D Transverse Ising Model with a Double-chain Bose-Hubbard model
Ren Liao, Fangyu Xiong, Xuzong Chen
We propose a spinless Bose-Hubbard model in an one-dimensional (1D) double-chain tilted lattice at unit filling per cell. A subspace of this model can be faithfully mapped to the 1…
Tuning Dissipation and Excitations in Superfluid Fermi Gases with a Moving Impurity
Dong-Chen Zheng, Yan-Qiang Yu, Renyuan Liao
We develop a method to extract the dissipation for a heavy moving impurity immersed in superfluid Fermi gases. The drag force is derived analytically. As a reward, we are able to e…
Searching for Supersolidity in Ultracold Atomic Bose Condensates with Rashba Spin-Orbit Coupling
Renyuan Liao
We developed functional integral formulation for the stripe phase of a spinor Bose-Einstein condensates with Rashba spin-orbit coupling. The excitation spectrum is found to exhibit…
Bose-Einstein condensates in the presence of Weyl spin-orbit coupling
Ting Wu, Renyuan Liao
We consider two-component Bose-Einstein condensates subject to Weyl spin-orbit coupling. We obtain mean-field ground state phase diagram by variational method. In the regime where…
Theoretical exploration of competing phases of lattice Bose gases in a cavity
Renyuan Liao, Huang-Jie Chen, Dong-Chen Zheng +1
We consider bosonic atoms loaded into optical lattices with cavity-mediated infinite-range interactions. Competing short- and global-range interactions cultivates a rich phase diag…
Hidden long-range order in a spin-orbit coupled two-dimensional Bose gas
Shih-Wei Su, I-Kang Liu, Shih-Chuan Gou +3
A spin-orbit coupled two-dimensional (2D) Bose gas is shown to simultaneously possess quasi and true long-range order in the total and relative phase sectors, respectively. The tot…
Motion of an Impurity in a Bose-Einstein Condensate with Weyl Spin-Orbit Coupling: Non-collinear Drag Force and Anisotropic Critical Velocity
Renyuan Liao, Oleksandr Fialko, Joachim Brand +1
We consider the motion of a point-like impurity through a three-dimensional two-component Bose-Einstein condensate subject to Weyl spin-orbit coupling. Using linear-response theory…
Multicriticality, Metastability, and Roton Feature in Bose-Einstein Condensates with Three-Dimensional Spin-Orbit Coupling
Renyuan Liao, Oleksander Fialko, Joachim Brand +1
We theoretically study homogeneously trapped atomic Bose-Einstein condensates where all three momentum components couple to a pseudo-spin- degree of freedom. Tuning the anisot…
Spin-Orbit Coupled Bose Gases at Finite Temperatures
Renyuan Liao, Oleksandr Fialko
Spin-orbit coupling is predicted to have dramatic effects on thermal properties of a two-component atomic Bose gas. We show that in three spatial dimensions it lowers the critical…
p-wave Pairing in Two-Component Fermi System with Unequal Population: Weak Coupling BCS to Strong Coupling BEC Regimes
Renyuan Liao, Florentin Popescu, Khandker Quader
We study p-wave pairing in a two-component Fermi system with unequal population across weak-coupling BCS to strong-coupling BEC regimes. We find a rich spin triplet p-wave…
Ground State Properties of Spin-Orbit Coupled Bose Gases for Arbitrary Interactions
Renyuan Liao, Zhi-Gao Huang, Xiu-Min Lin +1
We develop a field integral formalism to study spin-orbit-coupled (SOC) Bose gases with arbitrary interspecies interaction. We identify various features arising from the interplay…
Medium effects close to s- and p-wave Feshbach resonances in atomic Fermi gases
Renyuan Liao, Khandker F. Quader
Many-body effects may influence properties, such as scattering parameters, nature of pairing, etc., close to a Feshbach resonance in the fermion BEC-BCS crossover problem. We study…
Tuning the Tricritical Point with Spin-orbit Coupling in Polarized Fermionic Condensates
Renyuan Liao, Yu Yi-Xiang, Wu-Ming Liu
We investigate a two-component atomic Fermi gas with population imbalance in the presence of Rashba-type spin-orbit coupling (SOC). As a competition between SOC and population imba…
The decay and collisions of dark solitons in superfluid Fermi gases
R. G. Scott, F. Dalfovo, L. P. Pitaevskii +4
We study soliton collisions and the decay of solitons into sound in superfluid Fermi gases across the Bose-Einstein condensate to Bardeen-Cooper-Schrieffer (BEC-BCS) crossover by p…
Thermal-assisted Anisotropy and Thermal-driven Instability in the Superfluidity state of Two-Species Polar Fermi Gas
Renyuan Liao, Wu-Ming Liu
We study the superfluid state of two-species heteronuclear Fermi gases with isotropic contact and anisotropic long-range dipolar interactions. By explicitly taking account of Fock…
Traveling Dark Solitons in Superfluid Fermi Gases
Renyuan Liao, Joachim Brand
Families of dark solitons exist in superfluid Fermi gases. The energy-velocity dispersion and number of depleted particles completely determines the dynamics of dark solitons on a…
Anisotropic Superfluidity in the Two-Species Polar Fermi Gas
Renyuan Liao, Joachim Brand
We study the superfluid pairing in a two-species gas of heteronuclear fermionic molecules with equal density. The interplay of the isotropic s-wave interaction and anisotropic long…
P-wave Pairing in Two-Component Fermi Systems with Unequal Population near Feshbach Resonance
R. Liao, F. Popescu, K. Quader
We explore p-wave pairing in a single-channel two-component Fermi system with unequal population near Feshbach resonance. Our analytical and numerical study reveal a rich superflui…
Pairing in Asymmetrical Fermi Systems with Intra- and Inter-Species Correlations
Renyuan Liao, Khandker F. Quader
We consider inter- and intra-species pairing interactions in an asymmetrical Fermi system. Using equation of motion method, we obtain coupled mean-field equations for superfluid ga…