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

被引：26

作者：

Compagno, G

Messina, A

Nakazato, H

Napoli, A

Unoki, M

Yuasa, K

机构：

[1] Univ Palermo, INFM, MURST, I-90123 Palermo, Italy

[2] Univ Palermo, Dipartimento Sci Fis & Astron, I-90123 Palermo, Italy

[3] Waseda Univ, Dept Phys, Tokyo 1698555, Japan

来源：

PHYSICAL REVIEW A | 2004年 / 70卷 / 05期

基金：

日本学术振兴会;

关键词：

D O I：

10.1103/PhysRevA.70.052316

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：052316 / 1

页数：10

共 33 条

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