Spin Hall effects for cold atoms in a light induced gauge potential

TL;DR

This paper proposes an experimental setup to observe spin Hall effects in cold atoms using light-induced gauge potentials, demonstrating the feasibility of detecting spin-dependent currents and discussing quantum spin Hall states in optical lattices.

Contribution

It introduces a novel scheme for realizing and observing spin Hall effects in cold atom systems with light-induced gauge potentials, including numerical simulations and analysis of quantum spin Hall states.

Findings

Spin Hall currents can be observed in cold atoms with light-induced gauge fields.

Numerical simulations confirm the feasibility of the proposed scheme.

Discussion of quantum spin Hall states in optical lattices.

Abstract

We propose an experimental scheme to observe spin Hall effects with cold atoms in a light induced gauge potential. Under an appropriate configuration, the cold atoms moving in a spatially varying laser field experience an effective spin-dependent gauge potential. Through numerical simulation, we demonstrate that such a gauge field leads to observable spin Hall currents under realistic conditions. We also discuss the quantum spin Hall state in an optical lattice.