Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator

Details Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator

2004-05-14

arxiv.org/abs/quant-ph/0405074v2

Phys. Rev. A 70 (2004) 052316

Physics

Quantum Physics

11 pages, 2 figures; the version accepted for publication in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.70.052316

A recently proposed purification method, in which the Zeno-like measurements of a subsystem can bring about a distillation of another subsystem in interaction with the former, is utilized to yield entangled states between distant systems. It is shown that the measurements of a two-level system locally interacting with other two spatially separated not coupled subsystems, can distill entangled states from the latter irrespectively of the initial states of the two subsystems.

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