Generation of two-mode entanglement between separated cavities

TL;DR

This paper presents a scheme to generate entangled states between two distant cavities using a two-level atom and classical driving fields, enabling the creation of various entangled states like Bell and coherent states.

Contribution

It introduces a novel method for entangling separated cavities via atomic coupling and classical control, expanding quantum communication capabilities.

Findings

Successful generation of entangled coherent states.

Ability to produce Bell states between cavities.

Flexible control over entanglement properties.

Abstract

We propose a scheme for the generation of two-mode entangled states between two spatially separated cavities. It utilizes a two-level atom sequentially coupling to two high-Q cavities with a strong classical driving field. It is shown that by suitably choosing the intensities and detunings of the fields and coherent control of the dynamics, several different entangled states such as entangled coherent states and Bell states can be produced between the modes of the two cavities.