Biased EPR entanglement and its application to teleportation

Details Biased EPR entanglement and its application to teleportation Biased EPR entanglement and its application to teleportation

2001-04-23

arxiv.org/abs/quant-ph/0104108v2

Journal of Modern Optics, 2003, Vol. 50, No. 5, 801-813

Physics

Quantum Physics

8 pages, 5 figures

Scientific paper

We consider pure continuous variable entanglement with non-equal correlations between orthogonal quadratures. We introduce a simple protocol which equates these correlations and in the process transforms the entanglement onto a state with the minimum allowed number of photons. As an example we show that our protocol transforms, through unitary local operations, a single squeezed beam split on a beam splitter into the same entanglement that is produced when two squeezed beams are mixed orthogonally. We demonstrate that this technique can in principle facilitate perfect teleportation utilising only one squeezed beam.

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