628 citations · 1.7k across the 30 of their papers we have counts for
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Emergent Mott-insulators at non-integer fillings and devil's staircase induced by attractive interaction in many-body polarons
Jian-Hua Zeng, Su Yi, Liang He
We investigate the ground state properties of an ultracold atom system consisting of many-body polarons, quasiparticles formed by impurity atoms in optical lattices immersing in a…
Finite temperature mean-field theory with intrinsic non-hermitian structures for Bose gases in optical lattices
Liang He, Su Yi
We reveal a divergent issue associated with the mean-field theory for Bose gases in optical lattices constructed by the widely used straightforward mean-field decoupling of the hop…
Emergent criticality and universality class of spin and charge density wave transitions of two-component lattice Bose gases in optical cavities at finite temperature
Liang He, Su Yi
We investigate the finite temperature spin density wave (SDW) and charge density wave (CDW) transition of two-component lattice spinor Bose gases in optical lattices in the Mott-in…
Anomalous thermodynamics of lattice Bose gases in optical cavities
Liang He, Su Yi
We investigate thermodynamic properties of lattice Bose gases in optical cavities in the Mott-insulator limit. We find the system assumes anomalous thermodynamic behavior that can…
Emergent criticality and universality class of the finite temperature charge density wave transition in lattice Bose gases within optical cavities
Liang He, Su Yi
We investigate the finite temperature charge density wave (CDW) transition of lattice Bose gases within optical cavities in the deep Mott-insulator limit. We find a new critical re…
Magnetic phase transitions of spin-1 ultracold bosons in a cubic optical lattice
Yongqiang Li, Liang He, Walter Hofstetter
We investigate strongly correlated spin-1 ultracold bosons with antiferromagnetic interactions in a cubic optical lattice, based on bosonic dynamical mean-field theory. Rich phase…
Spin Excitation Spectra of Spin-Orbit Coupled Bosons in Optical Lattice
R. -Y. Li, Liang He, Q. Sun +2
Spin-wave excitation plays important roles in the investigation of the magnetic phases. In this paper, we study the spin-wave excitation spectra of two-component Bose gases with sp…
Bose-Bose Mixtures with Synthetic Spin-Orbit Coupling in Optical Lattices
Liang He, Anchun Ji, Walter Hofstetter
We investigate the ground state properties of Bose-Bose mixtures with Rashba-type spin-orbit (SO) coupling in a square lattice. The system displays rich physics from the deep Mott-…
Quantum phases of Bose-Bose mixtures on a triangular lattice
Liang He, Yongqiang Li, Ehud Altman +1
We investigate the zero temperature quantum phases of a Bose-Bose mixture on a triangular lattice using Bosonic Dynamical Mean Field Theory (BDMFT). We consider the case of total f…
Anisotropic pair-superfluidity of trapped two-component Bose gases
Yongqiang Li, Liang He, Walter Hofstetter
We theoretically investigate the pair-superfluid phase of two-component ultracold gases with negative inter-species interactions in an optical lattice. We establish the phase diagr…
Tunable anisotropic magnetism in trapped two-component Bose gases
Yongqiang Li, M. Reza Bakhtiari, Liang He +1
We theoretically address magnetic ordering at zero and finite temperature in both homogeneous and trapped Bose-Bose mixtures in optical lattices. By using Bosonic Dynamical Mean-Fi…
Supersolid Phase of Cold Fermionic Polar Molecules in 2D Optical Lattices
Liang He, Walter Hofstetter
We study a system of ultra-cold fermionic polar molecules in a two-dimensional square lattice interacting via both the long-ranged dipole-dipole interaction and a short-ranged on-s…