High-fidelity atomic-state teleportation protocol with non-maximally-entangled states

TL;DR

This paper introduces a high-fidelity atomic state teleportation protocol over long distances using cavity decay, leveraging non-maximally-entangled states to improve practicality with current optical cavity technology.

Contribution

It presents a novel protocol that modifies existing schemes by utilizing non-maximally-entangled states for improved feasibility and fidelity in atomic state teleportation.

Findings

Achieves high-fidelity teleportation with current optical cavities.

Utilizes non-maximally-entangled states for robustness.

Builds on and modifies the Bose et al. scheme.

Abstract

We propose a protocol of the long-distance atomic state teleportation via cavity decay, which allows for high-fidelity teleportation even with currently available optical cavities. The protocol is based on the scheme proposed by Bose \emph{et al.} [Phys. Rev. Lett. {\textbf{83}}, 5158 (1999)] but with one important modification: it employs non-maximally-entangled states instead of maximally entangled states.