Phys. Rev. A 70, 052316 (2004) [10 pages]Distillation of entanglement between distant systems by repeated measurements on an entanglement mediatorReceived 12 May 2004; published 18 November 2004 A recently proposed purification method, in which 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 measurements of a two-level system, locally interacting with two other spatially separated uncoupled subsystems, can distill entangled states from the latter irrespective of the initial states of the two subsystems. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.052316
DOI:
10.1103/PhysRevA.70.052316
PACS:
03.67.Mn, 03.65.Xp
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