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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 1, Iss. 2 — Feb. 20, 2003
  • pp: 114–117

Improving the fidelity of continuous-variable quantum teleportation by tuning displacement gain

Jinming Liu, Jian Li, and Guangcan Guo  »View Author Affiliations


Chinese Optics Letters, Vol. 1, Issue 2, pp. 114-117 (2003)


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Abstract

The fidelity of teleportation of continuous quantum variables can be improved by tuning the local displacement gain. We investigate the optimization of the fidelity for the teleportation of Schrodinger cat states, and of coherent states. It is found that the gain corresponding to the maximum fidelity is not equal to one for the two input states in the case of the small squeezing degree of the entanglement resource, while unity displacement gain is the best choice for teleporting arbitrary quantum states in the case of large squeezing.

© 2005 Chinese Optics Letters

OCIS Codes
(000.2690) General : General physics
(230.1360) Optical devices : Beam splitters
(270.6570) Quantum optics : Squeezed states

Citation
Jinming Liu, Jian Li, and Guangcan Guo, "Improving the fidelity of continuous-variable quantum teleportation by tuning displacement gain," Chin. Opt. Lett. 1, 114-117 (2003)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-1-2-114


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