Zhang, Chuanwei
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Chuanwei Zhang is a professor of the Physics Department faculty. He is interested in theoretical atomic physics and condensed matter physics. Currently his research activities include:
- Ultra-cold atomic gases
- Physical implementation of quantum information
- Topological superconductors
- Quantum chaos, physics of strongly-correlated multiferroic materials
- High temperature cuprate superconductivity
- Graphene
Learn more about Professor Zhang on his home and Physics Department pages.
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Recent Submissions
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Spin Current Generation and Relaxation in a Quenched Spin-Orbit-Coupled Bose-Einstein Condensate
(Nature Publishing Group, 2019-01)Understanding the effects of spin-orbit coupling (SOC) and many-body interactions on spin transport is important in condensed matter physics and spintronics. This topic has been intensively studied for spin carriers such ... -
Time-Reversal-Invariant Spin-Orbit-Coupled Bilayer Bose-Einstein Condensates
Time-reversal invariance plays a crucial role for many exotic quantum phases, particularly for topologically nontrivial states, in spin-orbit coupled electronic systems. Recently realized spin-orbit coupled cold-atom ... -
Self-Adapted Floquet Dynamics of Ultracold Bosons in a Cavity
Floquet dynamics of a quantum system subject to periodic modulations of system parameters provides a powerful tool for engineering new quantum matter with exotic properties. While system dynamics is significantly altered, ... -
Observation of Floquet Bands in Driven Spin-Orbit-Coupled Fermi Gases
Periodic driving of a quantum system can significantly alter its energy bands and even change the band topology, opening a completely new avenue for engineering novel quantum matter. Although important progress has been ... -
Topological Triply Degenerate Points Induced by Spin-Tensor-Momentum Couplings
The recent discovery of triply degenerate points (TDPs) in topological materials has opened a new perspective toward the realization of novel quasiparticles without counterparts in quantum field theory. The emergence of ... -
Momentum Space Aharonov-Bohm Interferometry in Rashba Spin-Orbit Coupled Bose-Einstein Condensates
The recent experimental realization of synthetic Rashba spin-orbit coupling (SOC) paves a new avenue for exploring topological phases in ultracold atoms. The unequivocal characterization of such topological physics requires ... -
Topological Triply Degenerate Points Induced by Spin-Tensor- Momentum Couplings
The recent discovery of triply degenerate points (TDPs) in topological materials has opened a new perspective toward the realization of novel quasiparticles without counterparts in quantum field theory. The emergence of ... -
Superfluidity in the Absence of Kinetics in Spin-Orbit-Coupled Optical Lattices
At low temperatures bosons typically condense to minimize their single-particle kinetic energy while interactions stabilize superfluidity. Optical lattices with artificial spin-orbit coupling challenge this paradigm, because ... -
Momentum-Space Josephson Effects
The Josephson effect is a prominent phenomenon of quantum supercurrents that has been widely studied in superconductors and superfluids. Typical Josephson junctions consist of two real-space superconductors (superfluids) ... -
Spin-Orbit-Driven Transitions between Mott Insulators and Finite-Momentum Superfluids of Bosons in Optical Lattices
(Amer Physical Soc, 2018-11-05)Synthetic spin-orbit coupling in ultracold atomic gases can be taken to extremes rarely found in solids. We study a two-dimensional Hubbard model of bosons in an optical lattice in the presence of spin-orbit coupling strong ... -
Spin-Tensor-Momentum-Coupled Bose-Einstein Condensates
(American Physical Society, 2017-11-06)The recent experimental realization of spin-orbit coupling for ultracold atomic gases provides a powerful platform for exploring many interesting quantum phenomena. In these studies, spin represents the spin vector (spin ... -
Adiabatically Tuning Quantized Supercurrents in an Annular Bose-Einstein Condensate
(2018-08-20)The ability to generate and tune quantized persistent supercurrents is crucial for building superconducting or atomtronic devices with novel functionalities. In ultracold atoms, previous methods for generating quantized ... -
Fulde-Ferrell Superfluids without Spin Imbalance in Driven Optical Lattices
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 conclusive evidence has not been found. ... -
Dynamical Spin-Density Waves in a Spin-Orbit-Coupled Bose-Einstein Condensate
(Amer Physical Soc, 2015-07-31)Synthetic spin-orbit (SO) coupling, an important ingredient for quantum simulation of many exotic condensed matter physics, has recently attracted considerable attention. The static and dynamic properties of a SO-coupled ... -
Exciton Polaritons in Transition-Metal Dichalcogenides and Their Direct Excitation via Energy Transfer
(2015-08-28)Excitons, composite electron-hole quasiparticles, are known to play an important role in optoelectronic phenomena in many semiconducting materials. Recent experiments and theory indicate that the band-gap optics of the ... -
Majorana Fermions in Quasi-One-Dimensional and Higher-Dimensional Ultracold Optical Lattices
(2015-08-14)We study Majorana fermions (MFs) in quasi-one dimensional (quasi-1D) and higher-dimensional fermionic optical lattices with a strictly 1D spin-orbit coupling, which has already been realized in cold atom experiments. We ... -
Spin-Orbital-Angular-Momentum Coupling in Bose-Einstein Condensates
(Amer Physical Soc, 2015-06-22)Spin-orbit coupling (SOC) plays a crucial role in many branches of physics. In this context, the recent experimental realization of the coupling between spin and linear momentum of ultracold atoms opens a completely new ... -
Tunable Spin-Orbit Coupling via Strong Driving in Ultracold-Atom Systems
(American Physical Society, 2015-03-24)Spin-orbit coupling is an essential ingredient in topological materials, conventional and quantum-gas-based alike. Engineered spin-orbit coupling in ultracold-atom systems - unique in their experimental control and measurement ... -
Interacting Spin-Orbit-Coupled Spin-1 Bose-Einstein Condensates
(American Physical Society, 2016-02-10)The recent experimental realization of spin-orbit (SO) coupling for spin-1 ultracold atoms opens an interesting avenue for exploring SO-coupling-related physics in large-spin systems, which is generally unattainable in ... -
Spin-Momentum Coupled Bose-Einstein Condensates with Lattice Band Pseudospins
(Nature Publishing Group, 2016-02-29)The quantum emulation of spin-momentum coupling, a crucial ingredient for the emergence of topological phases, is currently drawing considerable interest. In previous quantum gas experiments, typically two atomic hyperfine ...
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