Symmetry breaking and phase transitions in Bose-Einstein condensates with spin-orbital-angular-momentum coupling
arXiv:2010.10965 · doi:10.1103/PhysRevA.102.063328
Abstract
Theoretical study is presented for a spinor Bose-Einstein condensate, whose two components are coupled by copropagating Raman beams with different orbital angular momenta. The investigation is focused on the behavior of the ground state of this condensate, depending on the atom-light coupling strength. By analyzing the ground state, we have identified a number of quantum phases, which reflect the symmetries of the effective Hamiltonian and are characterized by the specific structure of the wave function. In addition to the well-known stripe, polarized and zero-momentum phases, our results show that the system can support phases, whose wave function contains a complex vortex molecule. Such molecule plays an important role in the continuous phase transitions of the system. The predicted behavior of vortex-molecule phases can be examined in cold-atom experiments using currently existing techniques.
References in corpus (29)
- A spin-orbit coupled Bose-Einstein condensate
- Artificial gauge potentials for neutral atoms
- Light-induced gauge fields for ultracold atoms
- Optical Confinement of a Bose-Einstein Condensate
- Spinor Bose-Einstein condensates
- Spin-Orbit Coupled Degenerate Fermi Gases
- Degenerate Quantum Gases with Spin-Orbit Coupling
- Spin-Orbit Coupled Spinor Bose-Einstein Condensates
- Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
- Collective Dipole Oscillation of a Spin-Orbit Coupled Bose-Einstein Condensate
- Quantum tri-criticality and phase transitions in spin-orbit coupled Bose-Einstein condensates
- Superstripes and the excitation spectrum of a spin-orbit-coupled Bose-Einstein condensate
- The spin Hall effect in a quantum gas
- Anisotropic dynamics of a spin-orbit coupled Bose-Einstein condensate
- Sculpting the Vortex State of a Spinor BEC
- Spin-orbital-angular-momentum coupled Bose-Einstein condensates
- Observation of quantum phase transition in spin-orbital-angular-momentum coupled Bose-Einstein condensate
- Energy dependent scattering and the Gross-Pitaevskii Equation in two dimensional Bose-Einstein condensates
- Spin - orbital-angular-momentum coupling in Bose-Einstein condensates
- Spatial coherence of spin-orbit-coupled Bose gases
- Angular spin-orbit coupling in cold atoms
- Quantum phases of Bose-Einstein condensates with synthetic spin - orbital-angular-momentum coupling
- Spin-orbit-angular-momentum coupling in a spin-1 Bose-Einstein condensate
- Half-skyrmion and meron pair in spinor condensates
- Angular Stripe Phase in Spin-Orbital-Angular-Momentum Coupled Bose Condensates
- Ground-state phase diagram and excitation spectrum of a Bose-Einstein condensate with spin-orbital-angular-momentum coupling
- Excitation spectra of a Bose-Einstein condensate with an angular spin-orbit coupling
- Spin Hall Effect in a Spinor Dipolar Bose-Einstein Condensate
- An Effective Potential Theory for Transport Coefficients Across Coupling Regimes
Cited by in corpus (14)
- Exotic Vortex States with Discrete Rotational Symmetry in Atomic Fermi Gases with Spin-Orbital-Angular-Momentum Coupling
- Spin-orbital-angular-momentum-coupled quantum gases
- Fine structure of the stripe phase in ring-shaped Bose-Einstein condensates with spin-orbital-angular-momentum coupling
- Quantum phases of spin-orbital-angular-momentum coupled bosonic gases in optical lattices
- Angular topological superfluid and topological vortex in an ultracold Fermi gas
- Quantum phases and spectrum of collective modes in a spin-1 BEC with spin-orbital-angular-momentum coupling
- Excitations of a supersolid annular stripe phase in a spin-orbital-angular-momentum-coupled spin-1 Bose-Einstein condensate
- Molecular state in a spin-orbital-angular-momentum coupled Fermi gas
- Dynamic generation of superflow in a fermionic ring through phase imprinting
- The synthetic gauge field and exotic vortex phase with spin-orbital-angular-momentum coupling
- Two atoms in a harmonic trap with spin-orbital-angular-momentum coupling
- Vortex phases and domain walls in trapped spinor Bose-Einstein condensates with inhomogeneous spin-orbital-angular-momentum coupling
- Tailoring Synthetic Gauge Fields in Ultracold Atoms via Spatially Engineered Vector Beams
- Dynamically generating superflow in a bosonic ring via phase imprinting