Quantum phases of three-components bosons in a spin–orbit-coupled square lattice

Dian-Cheng Zhang

Physica A: Statistical Mechanics and its Applications, 2023, vol. 620, issue C

Abstract: Relying on a square lattice, the quantum phases of a three-components Bose–Hubbard model are studied under spin–orbit-coupling. With the help of an inhomogeneous Gutzwiller variational method, we discovered phase-separation in stripe phase as well as in the superfluid and supersolid phase. Concretely, three components can simultaneously present striped and commensurate structures to bring up a stripe phase of the total system.They would also come to different types of supersolid states, such as ‘composite supersolid’ and ‘array supersolid’, resulting in a supersolid phase on the whole. We further find that the superfluid phase divides into different supersolid states for three components in the phase-separation under strong spin–orbit-coupling.

Keywords: Spin–orbit-coupling; Phase-separation; Bose–Hubbard; Stripe phase; Supersolid phase (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:620:y:2023:i:c:s0378437123003321

DOI: 10.1016/j.physa.2023.128777

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