Robust high-fidelity teleportation of an atomic state through the detection of cavity decay

Journal Article · Thu Jul 01 04:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.014302· OSTI ID:20645817

Bo, Yu; Zhengwei, Zhou; Yong, Zhang; Guoyong, Xiang; Guangcan, Guo ^[1]

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1. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026 (China)

We propose a scheme for the quantum teleportation of an atomic state based on the detection of cavity decay. The internal state of an atom trapped in a cavity can be disembodiedly transferred to another atom trapped in a distant cavity by measuring interference of polarized photons through single-photon detectors. In comparison with the original proposal by Bose, Knight, Plenio, and Vedral [Phys. Rev. Lett. 83, 5158 (1999)], our protocol of teleportation has a high fidelity of almost unity, and inherent robustness, such as the insensitivity of fidelity to randomness in the atom's position, and to detection inefficiency. All these favorable features make the scheme feasible with the current experimental technology.

• OSTI ID: 20645817
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
COMPARATIVE EVALUATIONS
CORRELATIONS
DECAY
DETECTION
ENERGY LEVELS
INTERFERENCE
PHOTON-ATOM COLLISIONS
PHOTONS
QUANTUM MECHANICS
RADIATION PRESSURE
RANDOMNESS
TRAPPING