Dynamics of quantized vortices in Bose-Einstein condensates with laser-induced spin-orbit coupling

TL;DR

This paper investigates how laser-induced spin-orbit coupling affects vortex dynamics in two-component Bose-Einstein condensates, revealing phase-dependent behaviors that can be experimentally observed and understood through stable vortex structures.

Contribution

It provides a numerical analysis of vortex dynamics across different ground state phases induced by spin-orbit coupling in BECs, highlighting phase-dependent behaviors.

Findings

Distinct vortex behaviors in each phase

Identification of stable vortex structures per phase

Potential for experimental observation of vortex dynamics

Abstract

We study vortex dynamics in trapped two-component Bose-Einstein condensates with a laser- induced spin-orbit coupling using the numerical analysis of the Gross-Pitaevskii equation. The spin-orbit coupling leads to three distinct ground state phases, which depend on some experimentally controllable parameters. When a vortex is put in one or both of the two-component condensates, the vortex dynamics exhibits very different behaviors in each phase, which can be observed in experiments. These dynamical behaviors can be understood by clarifying the stable vortex structure realized in each phase.