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Distillation of entanglement between distant systems by repeated measurements on entanglement mediator

  • Autori: Compagno, G.; Messina, A.; Nakazato, H.; Napoli, A.; Unoki, M.; Yuasa, K.
  • Anno di pubblicazione: 2004
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • OA Link:


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.