NONZERO TEMPERATURE 2-MODE SQUEEZING FOR TIME-DEPENDENT 2-LEVEL SYSTEMS

被引：15

作者：

ALIAGA, J

GRUVER, JL

PROTO, AN

CERDEIRA, HA

机构：

[1] UNIV BUENOS AIRES,SISTEMAS DINAM GRP,RA-1638 BUENOS AIRES,ARGENTINA

[2] UNIV ESTADUAL CAMPINAS,BR-13081 CAMPINAS,SP,BRAZIL

来源：

PHYSICS LETTERS A | 1994年 / 185卷 / 04期

关键词：

D O I：

10.1016/0375-9601(94)90168-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A maximum entropy principle density matrix method, valid for systems with temperature different from zero, is presented making it possible to find two-mode squeezed states in two-level systems with relevant operators and Hamiltonian connected with O(3,2). A method which allows one to relate the appearance of squeezing to the relevant operators, included in order to define the density matrix of the system, is given.

引用

页码：355 / 361

页数：7

共 21 条

[1]

ABDALLA MS, 1990, NUOVO CIMENTO B, V105, P799, DOI 10.1007/BF02742802

[2] STATISTICAL PROPERTIES OF A CHARGED OSCILLATOR IN THE PRESENCE OF A CONSTANT MAGNETIC-FIELD [J].