Quantum Teleportation with Entangled States given by Beam Splittings

Details Quantum Teleportation with Entangled States given by Beam Splittings Quantum Teleportation with Entangled States given by Beam Splittings

1999-12-17

arxiv.org/abs/quant-ph/9912083v1

Commun.Math.Phys. 222, 229-247 (2001)

Physics

Quantum Physics

25 pages, Latex 2e

Scientific paper

10.1007/s002200100497

Quantum teleportation is rigorously discussed with coherent entang led states given by beam splittings. The mathematical scheme of beam splitti ng has been used to study quantum communication and quantum stochastic. We d iscuss the teleportation process by means of coherent states in this scheme for the following two cases: (1) Delete the vacuum part from coherent states, whose compensation provides us a perfect teleportation from Alice to Bob. (2) Use fully realistic (physical) coherent states, which give s a non-perfect teleportation but shows that it is exact when the average en ergy (density) of the coherent vectors goes to infinity.

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