Temperature changes and squeezing properties of the system of time-dependent harmonic oscillators

被引：22

作者：

Ji, JY ^{[1
]}

Kim, JK ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL, DEPT PHYS, TAEJON 305701, SOUTH KOREA

来源：

PHYSICAL REVIEW A | 1996年 / 53卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.53.703

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The density operator is defined as a function of a generalized invariant for the system of time-dependent harmonic oscillators. Applying this to the Hamiltonian with two asymptotic regions, we calculate the temperature change driven by a time-varying Hamiltonian. Furthermore, the squeezing properties of an eigenstate and a coherent state of the initial Hamiltonian are discussed.

引用

页码：703 / 708

页数：6

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