State reconstruction for a collection of two-level systems

被引：56
|
作者：
Agarwal, GS [1 ]
机构：
[1] Phys Res Lab, Ahmadabad 380009, Gujarat, India
[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源：
PHYSICAL REVIEW A | 1998年 / 57卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.57.671
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method for reconstructing the quantum state of a system of atoms or spins is proposed. The Q distribution is derived from the measured population in the ground state of a system that has interacted with an external field. Using multipole operators the Q function is inverted to derive the density matrix. [S1050-2947(97)07012-1].
引用
收藏
页码：671 / 673
页数：3
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