Storage and retrieval of (3+1)-dimensional weak-light bullets and vortices in a coherent atomic gas

TL;DR

This paper proposes a scheme for robust storage and retrieval of high-dimensional weak-light bullets and vortices in a coherent atomic gas, overcoming dissipation, dispersion, and diffraction issues for quantum information applications.

Contribution

It introduces a method to stably store and retrieve (3+1)-dimensional light bullets and vortices using electromagnetically induced transparency in atomic gases, advancing high-dimensional light storage.

Findings

Stable (3+1)-D light bullets and vortices can be produced.

The scheme achieves high-fidelity storage and retrieval.

It overcomes dissipation, dispersion, and diffraction challenges.

Abstract

A robust light storage and retrieval (LSR) in high dimensions is highly desirable for light and quantum information processing. However, most schemes on LSR realized up to now encounter problems due to not only dissipation, but also dispersion and diffraction, which make LSR with a very low fidelity. Here we propose a scheme to achieve a robust storage and retrieval of weak nonlinear high-dimensional light pulses in a coherent atomic gas via electromagnetically induced transparency. We show that it is available to produce stable (3+1)-dimensional light bullets and vortices, which have very attractive physical property and are suitable to obtain a robust LSR in high dimensions.