Physics – Quantum Physics
Scientific paper
2007-01-30
Phys. Rev. A 75, 022317 (2007)
Physics
Quantum Physics
8 pages, 7 figures, accepted for publication in Phys. Rev. A
Scientific paper
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.
Chimczak Grzegorz
Tanas Ryszard
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