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 otherspatially separated uncoupled subsystems, can distill entangled states from the latter irrespective of the initial states of the two subsystems.
|Numero di pagine||10|
|Rivista||PHYSICAL REVIEW A|
|Stato di pubblicazione||Published - 2004|
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