Teleportation of continuous variable polarisation states

Details Teleportation of continuous variable polarisation states Teleportation of continuous variable polarisation states

2003-08-18

arxiv.org/abs/quant-ph/0308090v1

Physical Review A 68, 052308 (2003)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.68.052308

This paper discusses methods for the optical teleportation of continuous variable polarisation states. We show that using two pairs of entangled beams, generated using four squeezed beams, perfect teleportation of optical polarisation states can be performed. Restricting ourselves to 3 squeezed beams, we demonstrate that polarisation state teleportation can still exceed the classical limit. The 3-squeezer schemes involve either the use of quantum non-demolition measurement or biased entanglement generated from a single squeezed beam. We analyse the efficacies of these schemes in terms of fidelity, signal transfer coefficients and quantum correlations.

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