The controlled teleportation of an arbitrary two-atom entangled state in driven cavity QED

TL;DR

This paper presents a scheme for perfect controlled teleportation of any two-atom entangled state in driven cavity QED, utilizing a three-atom GHZ state as the channel, without Bell measurements, and robust against cavity decay and thermal fields.

Contribution

It introduces a novel controlled teleportation protocol that does not require Bell-state measurement and is resilient to common experimental imperfections.

Findings

Achieves perfect teleportation with success probability 1.0

Does not involve Bell-state measurement

Insensitive to cavity decay and thermal field

Abstract

In this paper, we propose a scheme for the controlled teleportation of an arbitrary two-atom entangled state $|\phi>_{12}=a|gg>_{12}+b|ge>_{12}+c|eg>_{12}+d|ee>_{12}$ in driven cavity QED. An arbitrary two-atom entangled state can be teleported perfectly with the help of the cooperation of the third side by constructing a three-atom GHZ entangled state as the controlled channel. This scheme does not involve apparent (or direct) Bell-state measurement and is insensitive to the cavity decay and the thermal field. The probability of the success in our scheme is 1.0.