CANONICAL TRANSFORMATION AND DECAY INTO PHASE-SENSITIVE RESERVOIRS

被引:48
作者
EKERT, AK [1 ]
KNIGHT, PL [1 ]
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL, BLACKETT LAB, LONDON SW7 2BZ, ENGLAND
来源
PHYSICAL REVIEW A | 1990年 / 42卷 / 01期
关键词
D O I
10.1103/PhysRevA.42.487
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We show that the master equation describing the dissipative evolution of a bosonic quantum system coupled to a phase-sensitive reservoir may be reduced to a standard form of dissipation for a thermal reservoir by canonical transformations. The solution to the master equation for complex phase-sensitive interaction induced, for example, by broadband squeezed light, may then be obtained by a transformation from the known solutions for the simpler thermal case. We show that canonical transformations have a particularly useful form when describing the evolution of quantum dissipative systems in phase space using the Wigner function. We illustrate these ideas with two phase-sensitive dissipative problems: that of the correlated-emission laser and of decay induced by a broadband squeezed vacuum field. © 1990 The American Physical Society.
引用
收藏
页码:487 / 493
页数:7
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