On entanglement capabilities in infinite dimensions or multi-dimensional entangled coherent states

Details On entanglement capabilities in infinite dimensions or multi-dimensional entangled coherent states On entanglement capabilities in infinite dimensions or multi-dimensional entangled coherent states

2003-02-11

arxiv.org/abs/quant-ph/0302086v2

Phys. Rev. Lett. 91, 017902 (2003)

Physics

Quantum Physics

4 pages ReVTeX, 1 figure. Added a proof, plus a reference, plus an acknowledgement, minus a typo

Scientific paper

10.1103/PhysRevLett.91.017902

An example is given of an interaction that produces an infinite amount of entanglement in an infinitely short time, but only a finite amount in longer times. The interaction arises from a standard Kerr nonlinearity and a 50/50 beamsplitter, and the initial state is a coherent state. For certain finite interaction times multi-dimensional generalizations of entangled coherent states are generated, for which we construct a teleportation protocol. Similarities between probabilistic teleportation and unambiguous state discrimination are pointed out.

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