Center of mass tomography for reconstructing quantum states of multipartite systems

被引：12

作者：

Arkhipov, AS ^{[1
]}

Lozovik, YE

Man'ko, VI

机构：

[1] Russian Acad Sci, Inst Spectroscopy, Troitsk 142190, Moscow Region, Russia

[2] PN Lebedev Phys Inst, Moscow 117924, Russia

来源：

PHYSICS LETTERS A | 2004年 / 328卷 / 06期

关键词：

tomography; quantum evolution; star product;

D O I：

10.1016/j.physleta.2004.06.039

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate a one random variable tomography map, describing quantum state of a multipartite system. The random variable is analogous to center of mass considered in rotated and scaled reference frames in the phase space. Starting from the star product formalism, we construct the map, investigate its properties (including the symmetry properties in respect to identical particles permutations), derive the evolution equation, and consider a multimode oscillator as an example. The physical meaning of the map is analyzed in detail. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：419 / 431

页数：13

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