Driving non-Gaussian to Gaussian states with linear optics

被引：160
|
作者：
Browne, DE
Eisert, J
Scheel, S
Plenio, MB
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, QOLS, London SW7 2BW, England
[2] Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany
来源：
PHYSICAL REVIEW A | 2003年 / 67卷 / 06期
关键词：
D O I：
10.1103/PhysRevA.67.062320
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We introduce a protocol that maps finite-dimensional pure input states onto approximately Gaussian states in an iterative procedure. This protocol can be used to distill highly entangled bipartite Gaussian states from a supply of weakly entangled pure Gaussian states. The entire procedure requires only the use of passive optical elements and photon detectors, which solely distinguish between the presence and absence of photons.
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页数：9
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