Spin exchange-induced spin-orbit coupling in a superuid mixture

Abstract

We investigate the ground-state properties of a dual-species spin-1/2 Bose-Einstein condensate. One of the species is subjected to a pair of Raman laser beams that induces spin-orbit (SO) coupling, whereas the other species is not coupled to the Raman laser. In certain limits, analytical results can be obtained. It is clearly shown that, through the inter-species spin-exchange interaction, the second species also exhibits SO coupling. This mixture system displays a very rich phase diagram, with many of the phases not present in an SO coupled single-species condensate. Our work provides a new way of creating SO coupling in atomic quantum gases, and opens up a new avenue of research in SO coupled superfluid mixtures. From a practical point of view, the spin exchange-induced SO coupling may overcome the heating issue for certain atomic species when subjected to the Raman beams.

arXiv comment6 pages, 3 figures, accepted for publication as a Rapid Commun. in PRA

References in corpus (35)

• A spin-orbit coupled Bose-Einstein condensate
• Light-induced gauge fields for ultracold atoms
• The dynamics of component separation in a binary mixture of Bose-Einstein condensates
• Spin-orbit coupling in quantum gases
• Spin-Orbit Coupled Degenerate Fermi Gases
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Degenerate Quantum Gases with Spin-Orbit Coupling
• Spin-Orbit Coupled Spinor Bose-Einstein Condensates
• Quantum spins mixing in spinor Bose-Einstein condensates
• Quantum tri-criticality and phase transitions in spin-orbit coupled Bose-Einstein condensates
• Spin-orbit coupled weakly interacting Bose-Einstein condensates in harmonic traps
• Trapped two-dimensional condensates with synthetic spin-orbit coupling
• Unconventional Bose-Einstein condensations from spin-orbit coupling
• A Mixture of Bose and Fermi Superfluids
• Realistic Rashba and Dressehaus spin-orbit coupling for neutral atoms
• Superstripes and the excitation spectrum of a spin-orbit-coupled Bose-Einstein condensate
• Itinerant magnetism in spin-orbit coupled Bose gases
• Collective oscillations of two colliding Bose-Einstein condensates
• Two-Element Mixture of Bose and Fermi Superfluids
• Observation of two-species vortex lattices in a mixture of mass-imbalance Bose and Fermi superfluids
• Properties of Bose Gases with Raman-Induced Spin-Orbit Coupling
• The Raman dressed spin-1 spin-orbit coupled quantum gas
• Tricriticalities and Quantum Phases in Spin-Orbit-Coupled Spin-$1$ Bose Gases
• Interacting spin-orbit-coupled spin-1 Bose-Einstein condensates
• Phase transitions and elementary excitations in spin-1 Bose gases with Raman-induced spin-orbit coupling
• Spin-orbit-angular-momentum coupling in a spin-1 Bose-Einstein condensate
• Striped Ferronematic ground states in a spin-orbit coupled $S=1$ Bose gas
• Coherent heteronuclear spin dynamics in an ultracold spin-1 mixture
• A binary mixture of spinor atomic Bose-Einstein condensates
• Rashba realization: Raman with RF
• Magnetic field dependence of Raman coupling in Alkali atoms
• Ground States of a Mixture of Two Species of Spinor Bose Gases with Interspecies Spin Exchange
• Quantum states of a binary mixture of spinor Bose-Einstein condensates
• Quantum Phases of Two-Component Bosons with Spin-Orbit Coupling in Optical Lattices
• Symmetry protected skyrmions in 3D spin-orbit coupled Bose gases

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• Holding and transferring matter-wave solitons against gravity by spin-orbit-coupling tweezers
• Weakly-interacting Bose-Bose mixtures from the functional renormalisation group
• Topological defects in rotating spin-orbit-coupled dipolar spin-1 Bose-Einstein condensates
• Quantum information flow in impurity qubits interacting with Bose-Bose mixtures