Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator
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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.
11 pages, 2 figures; the version accepted for publication in Phys. Rev. A
11 pages, 2 figures; the version accepted for publication in Phys. Rev. A