Generation of four-qubit cluster of entangled coherent states in bimodal QED cavities

TL;DR

This paper proposes an experimental scheme to generate four-qubit cluster states of entangled coherent states in bimodal QED cavities using a single atom, analyzing fidelity and success probability under realistic conditions.

Contribution

It introduces a novel experimental setup for generating cluster entangled coherent states in bimodal QED cavities with detailed analysis of practical factors.

Findings

High fidelity achievable under realistic conditions

Success probability depends on atomic velocity spread and detection efficiency

Scheme feasible with current cavity QED technology

Abstract

A recent work [1] proposed a type of cluster entangled coherent states and its generation. Here we present an alternative experimental arrangement for its generation in bimodal QED cavities. The scheme employs a single two-level atom that interacts dispersively with cavity modes initially prepared in coherent states. The fidelity and success probability of the state preparation are obtained considering the influence of atomic velocity spread and atomic efficiency detection.