Unified statistical method for reconstructing quantum states by purification

被引：27
|
作者：
Bogdanov, Yu. I. [1 ]
机构：
[1] Russian Acad Sci, Inst Phys & Technol, Moscow 117218, Russia
来源：
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2009年 / 108卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
03.65.Wj; 42.50.Dv;
D O I：
10.1134/S106377610906003X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Mixed-state purification is used as a basis to formulate a general statistical method for reconstructing the density matrix of an arbitrary quantum state. A universal statistical distribution is obtained for the fidelity of the reconstructed quantum state. The proposed theory is supported by results of numerical simulations.
引用
收藏
页码：928 / 935
页数：8
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