Unconditional teleportation of continuous-variable entanglement

Details Unconditional teleportation of continuous-variable entanglement Unconditional teleportation of continuous-variable entanglement

1999-06-21

arxiv.org/abs/quant-ph/9906075v2

Phys. Rev. A 61, 010302(R) (2000)

Physics

Quantum Physics

4 pages, 2 figures, published version, title changed

Scientific paper

10.1103/PhysRevA.61.010302

We give a protocol and criteria for demonstrating unconditional teleportation of continuous-variable entanglement (i.e., entanglement swapping). The initial entangled states are produced with squeezed light and linear optics. We show that any nonzero entanglement (any nonzero squeezing) in both of two entanglement sources is sufficient for entanglement swapping to occur. In fact, realization of continuous-variable entanglement swapping is possible using only {\it two} single-mode squeezed states.

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