Now showing items 1-4 of 4

    • Momentum-Space Josephson Effects 

      Hou, Junpeng; Luo, Xi-Wang; Sun, Kuei; Bersano, Thomas; Gokhroo, Vandna; Mossman, Sean; Engels, Peter; Zhang, Chuanwei
      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 

      Yan, Mi; Qian, Yinyin; Hui, Hoi-Yin; Gong, Ming; Zhang, Chuanwei; Scarola, V. W. (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 ...
    • Superfluidity in the Absence of Kinetics in Spin-Orbit-Coupled Optical Lattices 

      Hui, Hoi-Yin; Zhang, Yongping; Zhang, Chuanwei; Scarola, V. W.
      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 ...
    • Topological Triply Degenerate Points Induced by Spin-Tensor- Momentum Couplings 

      Hu, Haiping; Hou, Junpeng; Zhang, Fan; Zhang, Chuanwei
      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 ...