Open system entanglement and the laser quantum state

被引：6
作者：
Carmichael, H. J. [1 ]
Noh, Changsuk [1 ]
机构：
[1] Univ Auckland, Dept Phys, Auckland, New Zealand
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 03期
关键词：
Entanglement; Open quantum systems; Coherent states; Laser theory; OPTICAL COHERENCE; CONSISTENT HISTORIES; INTERFERENCE; PHASE; FIELD;
D O I：
10.1016/j.physe.2009.06.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The common assertion that lasers produce light in a coherent state and recent criticism of it are discussed. Laser theories in coherent- and Fock-state bases are reviewed, and physical interpretations of each Sought by considering how entanglement with the environment is resolved to reach a reduced description. Our recently proposed criterion leading to the unique assignment of coherent states [C. Noh, H.J. Carmichael, Phys. Rev. Lett. 100 (2008) 120405-1] is developed against this background. (C) 2009 Elsevier B.V. All rights reserved.
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页码：399 / 406
页数：8
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