Self-Bound Quantum Droplet with Internal Stripe Structure in One-Dimensional Spin-Orbit-Coupled Bose Gas
Yuncheng Xiong, Lan Yin
Abstract
We study the quantum-droplet state in a three-dimensional (3D) Bose gas in the presence of 1D spin-orbit coupling and Raman coupling, especially the stripe phase with density modulation, by numerically computing the ground state energy including the mean-field energy and Lee–Huang–Yang correction. In this droplet state, the stripe can exist in a wider range of Raman coupling, compared with the BEC-gas state. More intriguingly, both spin-orbit coupling and Raman coupling strengths can be used to tune the droplet density.
Topics & Concepts
Raman spectroscopyCoupling (piping)Ground stateBose gasRange (aeronautics)PhysicsMaterials sciencePhase (matter)Condensed matter physicsEnergy (signal processing)QuantumMolecular physicsState (computer science)Raman scatteringPhase transitionGas phaseAtomic physicsEnergy spectrumSpectrum (functional analysis)Quantum dotCold Atom Physics and Bose-Einstein CondensatesStrong Light-Matter InteractionsQuantum many-body systems