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Title: Improving fidelity in atomic state teleportation via cavity decay

Abstract

We propose a modified protocol of atomic state teleportation for the scheme proposed by Bose et al. [Phys. Rev. Lett. 83, 5158 (1999)]. The modified protocol involves an additional stage in which quantum information distorted during the first stage is fully recovered by a compensation of the damping factor. The modification makes it possible to obtain a high fidelity of teleported state for cavities that are much worse than that required in the original protocol, i.e., their decay rates can be over 25 times larger. The improvement in the fidelity is possible at the expense of lowering the probability of success. We show that the modified protocol is robust against dark counts.

Authors:
;  [1]
  1. Nonlinear Optics Division, Physics Institute, Adam Mickiewicz University, 61-614 Poznan (Poland)
Publication Date:
OSTI Identifier:
20982084
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.022317; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAVITY RESONATORS; ENERGY LOSSES; INFORMATION THEORY; PROBABILITY; QUANTUM INFORMATION; QUANTUM MECHANICS; QUANTUM TELEPORTATION

Citation Formats

Chimczak, Grzegorz, and Tanas, Ryszard. Improving fidelity in atomic state teleportation via cavity decay. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.022317.
Chimczak, Grzegorz, & Tanas, Ryszard. Improving fidelity in atomic state teleportation via cavity decay. United States. doi:10.1103/PHYSREVA.75.022317.
Chimczak, Grzegorz, and Tanas, Ryszard. Thu . "Improving fidelity in atomic state teleportation via cavity decay". United States. doi:10.1103/PHYSREVA.75.022317.
@article{osti_20982084,
title = {Improving fidelity in atomic state teleportation via cavity decay},
author = {Chimczak, Grzegorz and Tanas, Ryszard},
abstractNote = {We propose a modified protocol of atomic state teleportation for the scheme proposed by Bose et al. [Phys. Rev. Lett. 83, 5158 (1999)]. The modified protocol involves an additional stage in which quantum information distorted during the first stage is fully recovered by a compensation of the damping factor. The modification makes it possible to obtain a high fidelity of teleported state for cavities that are much worse than that required in the original protocol, i.e., their decay rates can be over 25 times larger. The improvement in the fidelity is possible at the expense of lowering the probability of success. We show that the modified protocol is robust against dark counts.},
doi = {10.1103/PHYSREVA.75.022317},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}