Paired Superfluidity and Fractionalized Vortices in Spin-orbit Coupled Bosons

Abstract

In this letter we study finite temperature properties of spin-1/2 interacting bosons with spin-orbit coupling in two dimensions. When the ground state has stripe order, we show that thermal fluctuations will first melt the stripe order and lead to a superfluid of boson pairs if the spin-orbit coupling is isotropic or nearly isotropic. Such a phase supports fractionalized quantum vortices. The Kosterlize-Thouless transition from superfluid to normal state is driven by proliferation of half vortices. When the ground state is a plane wave state, the transition to normal state is driven by conventional Kosterlize-Thouless transition. However, the critical temperature will drop to zero for isotropic spin-orbit coupling.

4+2 pages, 4 figures

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• A spin-orbit coupled Bose-Einstein condensate
• Spin-Orbit Coupled Spinor Bose-Einstein Condensates
• Spin-orbit coupled Bose-Einstein condensates
• Charge $4e$ superconductivity from pair density wave order in certain high temperature superconductors
• Dislocations and vortices in pair density wave superconductors
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Cited by in corpus (55)

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• Vortices in spin-orbit-coupled Bose-Einstein condensates
• Exotic superfluidity in spin-orbit coupled Bose-Einstein condensates
• Stability of ultracold atomic Bose condensates with Rashba spin-orbit coupling against quantum and thermal fluctuations
• Quantum quasicrystals of spin-orbit coupled dipolar bosons
• Josephson dynamics of a spin-orbit coupled Bose-Einstein condensate in a double well potential
• Crystallized merons and inverted merons in the condensation of spin-1 Bose gases with spin-orbit coupling
• Ground-state phases of ultracold bosons with Rashba-Dresselhaus spin-orbit coupling
• Spin-orbit coupling induced fractionalized Skyrmion excitations in rotating and rapidly quenched spin-1 Bose-Einstein condensates
• Universal phase structure of dilute Bose gases with Rashba spin-orbit coupling
• Matter-wave dark solitons and their excitation spectra in spin-orbit coupled Bose-Einstein condensates
• BCS-BEC crossover in spin-orbit coupled two-dimensional Fermi gases
• Ground state of spin-1 Bose-Einstein condensates with spin-orbit coupling in a Zeeman field
• Superfluidity of Bosons in Kagome Lattices with Frustration
• Enhancement of condensate depletion due to spin-orbit coupling
• Phase diagrams and Thomas-Fermi estimates for spin-orbit coupled Bose-Einstein Condensates under rotation
• Striped Ferronematic ground states in a spin-orbit coupled $S=1$ Bose gas
• Charge-4e superconductors: a Majorana quantum Monte Carlo study
• Emergence of Chiral Magnetism in Spinor Bose-Einstein Condensate with Rashba Coupling
• Condensation transition of ultracold Bose gases with Rashba spin-orbit coupling
• Striped states in weakly trapped ultracold Bose gases with Rashba spin-orbit coupling
• Thermal Phase Transitions of Strongly Correlated Bosons with Spin-Orbit Coupling
• Ground State Properties of Spin-Orbit Coupled Bose Gases for Arbitrary Interactions
• Disclination classes, fractional excitations, and the melting of quantum liquid crystals
• Metallic state in bosonic systems with continuously degenerate minima
• Spin-orbit Coupling Effects on the Superfluidity of Fermi Gas in an Optical Lattice
• Quantum liquid-crystal order in resonant atomic gases
• Dynamical generation of dark solitons in spin-orbit-coupled Bose-Einstein condensates
• Rashba realization: Raman with RF
• Ferromagnetic and Nematic Non-Fermi Liquids in Spin-Orbit Coupled Two-Dimensional Fermi Gases
• Spin-orbit coupled Bose-Einstein condensates in a double well
• Spin-orbit-coupled Bose-Einstein-condensed atoms confined in annular potentials
• Symmetry constraints on superconductivity in twisted bilayer graphene: Fractional vortices, $4e$ condensates or non-unitary pairing
• Hydrodynamics of a superfluid smectic
• A Two-dimensional Algebraic Quantum Liquid Produced by an Atomic Simulator of the Quantum Lifshitz Model
• Drag force on a moving impurity in a spin-orbit coupled Bose-Einstein condensate
• Emergence of a spin microemulsion in spin-orbit coupled Bose-Einstein condensates
• Finite Temperature Phases of Two Dimensional Spin-Orbit Coupled Bosons
• Finite-momentum superfluidity and phase transitions in a p-wave resonant Bose gas
• Superfluidity of Bose-Einstein condensates in ultracold atomic gases
• Spin relaxation in ultracold spin-orbit coupled ${}^{40}$K gas
• Electronic Floquet Liquid Crystals
• Vortices and vortex states in Rashba spin-orbit-coupled condensates
• Hidden long-range order in a spin-orbit coupled two-dimensional Bose gas
• Density Dependent Spin-Orbit Coupling in Degenerate Quantum Gases
• Spin-orbit coupling induced separation and hidden spin textures in spin-1 Bose-Einstein condensates
• Mobile magnetic impurities in a Fermi superfluid: a route to designer molecules
• Four-coloring model and frustrated superfluidity in the diamond lattice
• Robust Dynamics of Rogue waves, Breathers and Mixed Bound State Solutions in Spin-Orbit and Rabi Coupled Condensates
• Bose-Einstein condensate of Dirac magnons: Pumping and collective modes
• ${\mathbb{Z}}_n$ symmetry broken supersolid in spin-orbit-coupled Bose-Einstein condensates
• Superfluidity of Total Angular Momentum