134 citations · 459 across the 28 of their papers we have counts for
27 papers
Ab initio Real-Time Quantum Dynamics of Charge Carriers in Momentum Space
Zhenfa Zheng, Yongliang Shi, Jin-jian Zhou +3
Application of the nonadiabatic molecular dynamics (NAMD) approach is severely limited to studying carrier dynamics in the momentum space, since a supercell is required to sample t…
Tunable boson-assisted finite-range interaction and engineering Majorana corner modes in optical lattices
Yu-Biao Wu, Zhen Zheng, Xiang-Gang Qiu +4
Nonlocal interaction between ultracold atoms trapped in optical lattices can give rise to interesting quantum many-body phenomena. However, its realization usually demands unconven…
Topological Electromagnetic Effects and Higher Second Chern Numbers in Four-Dimensional Gapped Phases
Yan-Qing Zhu, Zhen Zheng, Giandomenico Palumbo +1
Higher-dimensional topological phases play a key role in understanding the lower-dimensional topological phases and the related topological responses through a dimensional reductio…
Quantum emulation of topological magneto-optical effects using ultracold atoms
Zhen Zheng, Z. D. Wang
Magneto-optical effect is a fundamental but broad concept in magnetic mediums. Here we propose a scheme for its quantum emulation using ultracold atoms. By representing the light-m…
Non-Hermitian spatial symmetries and their stabilized normal and exceptional topological semimetals
W. B. Rui, Zhen Zheng, Chenjie Wang +1
We study non-Hermitian spatial symmetries -- a class of symmetries that have no counterparts in Hermitian systems -- and study how normal and exceptional semimetals can be stabiliz…
Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry
W. B. Rui, Zhen Zheng, Moritz M. Hirschmann +3
We discover three-dimensional intertwined Weyl phases, by developing a theory to create topological phases. The theory is based on intertwining existing topological gapped and gapl…
Higher-order Weyl superconductors with anisotropic Weyl-point connectivity
W. B. Rui, Song-Bo Zhang, Moritz M. Hirschmann +3
Weyl superconductors feature Weyl points at zero energy in the three-dimensional (3D) Brillouin zone and arc states that connect the projections of these Weyl points on the surface…
Multiorder topological superfluid phase transitions in a two-dimensional optical superlattice
Yu-Biao Wu, Guang-Can Guo, Zhen Zheng +1
Higher-order topological superfluids have gapped bulk and symmetry-protected Majorana zero modes with various localizations. Motivated by recent advances, we present a proposal for…
Emulation of magneto-optic Faraday effect using ultracold atoms
Zhen Zheng, Z. D. Wang
We propose an arresting scheme for emulating the famous Faraday effect in ultracold atomic gases. Inspired by the similarities between the light field and bosonic atoms, we represe…
Cavity-induced Fulde-Ferrell-Larkin-Ovchinnikov superfluids of ultracold Fermi gases
Zhen Zheng, Z. D. Wang
Motivated by recent experimental advances in ultracold atomic gases placed in cavities, we study the influence of the atom-cavity coupling on the Fermi gases trapped in optical lat…
Effective Hamiltonian with tunable mixed pairing in driven optical lattices
Yu-Biao Wu, Guang-Can Guo, Zhen Zheng +1
Mixed pairing in ultracold Fermi gases can give rise to interesting many-body phases, such as topological nontrivial superfluids that support Majorana zero modes (MZMs) with variou…
Chiral magnetic effect in three-dimensional optical lattices
Zhen Zheng, Zhi Lin, Dan-Wei Zhang +2
Although Weyl semimetals have been extensively studied for exploring rich topological physics, the direct observation of the celebrated chiral magnetic effect (CME) associated with…
Manipulating Cooper pairs with a controllable momentum in periodically driven degenerate Fermi gases
Zhen Zheng, Z. D. Wang
We here present an experimentally feasible proposal for manipulating Cooper pairs in degenerate Fermi gases trapped by an optical lattice. Upon introducing an \textit{in situ} peri…
Field-induced topological pair-density wave states in a multilayer optical lattice
Zhen-Fei Zheng, Guang-Can Guo, Han Pu +1
We study the superfluid phases of a Fermi gas in a multilayer optical lattice system in the presence of out-of-plane Zeeman field, as well as spin-orbit (SO) coupling. We show that…
Cavity-mediated oscillating and trapping dynamics in a two-component condensate
Yue-xin Huang, Zhen Zheng, Wei Feng Zhuang +2
Cold atoms in cavity provides a new platform for exploring exotic many-body phases. Here we explore the dynamics of a two-component condensate coupled to a finesse cavity, in which…
Synthetic topological Kondo insulator in a pumped optical cavity
Zhen Zheng, Xu-Bo Zou, Guang-Can Guo
Motivated by experimental advances on ultracold atoms coupled to a pumped optical cavity, we propose a scheme for synthesizing and observing the Kondo insulator in Fermi gases trap…
Gapped topological Fulde-Ferrell-Larkin-Ovchinnikov superfluids with artificial gauge potential and weak interaction
Yue-Xin Huang, Wei-Feng Zhuang, Zhen Zheng +2
The topological superfluids with Majorana zero modes have not yet been realized in ultracold atoms with Rashba spin-orbit coupling. Here we show that these phases can be realized w…
Topological Supersolidity of Dipolar Fermi Gases in a Spin-Dependent Optical Lattice
Huan-Yu Wang, Zhen Zheng, Lin Zhuang +1
We investigate topological supersolidity of dipolar Fermi gases in a spin-dependent 2D optical lattice. Numerical results show that the topological supersolid states can be synthes…
Fulde-Ferrell superfluids in spinless ultracold Fermi gases
Zhen-Fei Zheng, Guang-Can Guo, Zhen Zheng +1
The Fulde-Ferrell (FF) superfluid phase, in which fermions form finite-momentum Cooper pairings, is well studied in spin-singlet superfluids in past decades. Different from previou…
Artificial topological models based on a one-dimensional spin-dependent optical lattice
Zhen Zheng, Han Pu, Xubo Zou +1
Topological matter is a popular topic in both condensed matter and cold atom research. In the past decades, a variety of models have been identified with fascinating topological fe…
Effective p-wave interaction and topological superfluids in s-wave quantum gases
Bin Wang, Zhen Zheng, Han Pu +2
P-wave interaction in cold atoms may give rise to exotic topological superfluids. However, the realization of p-wave interaction in cold atom system is experimentally challenging.…
Fulde-Ferrell Superfluids without Spin Imbalance in Driven Optical Lattices
Zhen Zheng, Chunlei Qu, Xubo Zou +1
Spin-imbalanced ultracold Fermi gases have been widely studied recently as a platform for exploring the long-sought Fulde-Ferrell-Larkin-Ovchinnikov superfluid phases, but so far c…
Floquet FFLO superfluids and Majorana fermions in a shaken fermionic optical lattice
Zhen Zheng, Chunlei Qu, Xubo Zou +1
Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluids, Cooper pairings with finite momentum, and Majorana fermions (MFs), quasiparticles with non-Abelian exchange statistics, are two…
Thermodynamic Properties of Rashba Spin-Orbit-Coupled Fermi Gas
Zhen Zheng, Han Pu, Xubo Zou +1
We investigate the thermodynamic properties of a superfluid Fermi gas subject to Rashba spin-orbit coupling and effective Zeeman field. We adopt a T-matrix scheme that takes beyond…