Chuanwei Zhang
University of Texas at Dallas
Ultracold atomPhysicsTopologyQuasiparticlePhase transitionZeeman effectSuperfluidityCondensed matter physicsMAJORANACoupling (physics)Bose–Einstein condensateFermionSuperconductivityQuantum mechanicsGround stateDegenerate energy levelsSpin-½QuantumFermi gasOptical lattice
244Publications
42H-index
4,500Citations
Publications 222
Newest
#1Junpeng HouH-Index: 10
#2Zhitong LiH-Index: 6
Last. Chuanwei ZhangH-Index: 42
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Source
#1Ying SuH-Index: 12
#2Heqiu LiH-Index: 2
Last. Shi-Zeng LinH-Index: 26
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We demonstrate a generic mechanism to realize topological moir\'e minibands by considering a massive Dirac fermion moving in a moir\'e potential, which can be achieved in a heterobilayer of transition metal dichalcogenides. We take the MoTe_2WSe_2heterobilayer as an example and show that the topological phase can be driven by a vertical electric field due to the lattice corrugation. Thus a correlated Chern insulator can be stabilized by the Coulomb interaction that breaks the time-reversal...
#1Fangzhao Alex AnH-Index: 11
#2Bhuvanesh SundarH-Index: 9
Last. Bryce GadwayH-Index: 25
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The scope of analog simulation in atomic, molecular, and optical systems has expanded greatly over the past decades. Recently, the idea of synthetic dimensions -- in which transport occurs in a space spanned by internal or motional states coupled by field-driven transitions -- has played a key role in this expansion. While approaches based on synthetic dimensions have led to rapid advances in single-particle Hamiltonian engineering, strong interaction effects have been conspicuously absent from ...
Source
#1Xi-Wang LuoH-Index: 11
#2Chuanwei ZhangH-Index: 42
Last. Shengwang DuH-Index: 34
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The emergence of parity-time (\mathcal{PT} symmetry has greatly enriched our study of symmetry-enabled non-Hermitian physics, but the realization of quantum \mathcal{PT}symmetry faces an intrinsic issue of unavoidable symmetry-breaking Langevin noises. Here we construct a quantum pseudo-anti-% \mathcal{PT}(pseudo-\mathcal{APT} symmetry in a two-mode bosonic system without involving Langevin noises. We show that the pseudo-\mathcal{APT}phase transition across the exceptional point ...
#2Xi-Wang Luo (UTD: University of Texas at Dallas)H-Index: 11
Last. Chuanwei ZhangH-Index: 42
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Significant experimental progress has been made recently for observing long-sought supersolid-like states in Bose-Einstein condensates, where spatial translational symmetry is spontaneously broken by anisotropic interactions to form a stripe order. Meanwhile, the superfluid stripe ground state was also observed by applying a weak optical lattice that forces the symmetry breaking. Despite of the similarity of the ground states, here we show that these two symmetry breaking mechanisms can be disti...
Source
#2Xi-Wang LuoH-Index: 11
Last. Chuanwei ZhangH-Index: 42
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Berezinskii-Kosterlitz-Thouless (BKT) transition, the topological phase transition to a quasi-long range order in a two-dimensional (2D) system, is a hallmark of low-dimensional topological physics. The recent emergence of non-Hermitian physics, particularly parity-time (\mathcal{PT} symmetry, raises a natural question about the fate of low-dimensional orders (e.g., BKT transition) in the presence of complex energy spectrum. Here we investigate the BKT phase transition in a 2D degenerate Ferm...
#1Jun Hui See TohH-Index: 3
Last. Subhadeep GuptaH-Index: 27
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Contrary to a driven classical system that exhibits chaos phenomena and diffusive energy growth, a driven quantum system can exhibit dynamical localization that features energy saturation. However, the evolution of the dynamically localized state in the presence of many-body interactions has for long remained an open question. Here we realize a many-body quantum kicked rotor with a 1D ultracold gas periodically kicked by a pulsed optical lattice, and observe the interaction-driven emergence of d...
#1Xi-Wang LuoH-Index: 11
#2Chuanwei ZhangH-Index: 42
Last. Shengwang DuH-Index: 34
view all 5 authors...
A quantum internet connects remote quantum processors that need interact and exchange quantum signals over a long distance through photonic channels. However, these quantum nodes are usually composed of quantum systems with emitted photons unsuitable for long-distance transmission. Therefore, quantum wavelength conversion to telecom is crucial for long-distance quantum networks based on optical fiber. Here we propose wavelength conversion devices for single-photon polarization qubits using conti...
#1Jianming WenH-Index: 20
#2Irina NovikovaH-Index: 30
Last. Shengwang DuH-Index: 34
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By coherently combining advantages while largely avoiding limitations of two mainstream platforms, optical hybrid entanglement involving both discrete and continuous variables has recently garnered widespread attention and emerged as a promising idea for building heterogenous quantum networks. Different from previous results, here we propose a new scheme to remotely generate hybrid entanglement between discrete-polarization and continuous-quadrature optical qubits heralded by two-photon Bell sta...
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