Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator
Quantum Physics
2007-05-23 v2
Abstract
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.
Cite
@article{arxiv.quant-ph/0405074,
title = {Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator},
author = {G. Compagno and A. Messina and H. Nakazato and A. Napoli and M. Unoki and K. Yuasa},
journal= {arXiv preprint arXiv:quant-ph/0405074},
year = {2007}
}
Comments
11 pages, 2 figures; the version accepted for publication in Phys. Rev. A