Generation of maximally entangled states of two cavity modes

TL;DR

This paper proposes a scheme to generate maximally entangled states of two cavity modes using a two-level atom, enabling the creation of Bell states and implementing universal quantum logic gates in cavity QED systems.

Contribution

It introduces a practical method for generating Bell basis states and demonstrates how a two-level atom can serve as a control qubit for quantum gates in cavity QED.

Findings

Successful generation of Bell basis states

Implementation of universal quantum logic gates

Feasibility in high Q cavity systems

Abstract

In this letter we present a scheme for generating maximally entangled states of two cavity modes which enables us to generate complete set of Bell basis states having rather simple initial state preparation. Furthermore, we study the interaction of a two-level atom with two modes of electromagnetic field in a high Q cavity. The two-level atom acts as a control qubit and the two mode electromagnetic field serves as a target qubit. This simple system of quantum electrodynamics provides us experimentally feasible universal quantum logic gates.