Using the Renyi entropy to describe quantum dissipative systems in statistical mechanics

被引:10
|
作者
Kirchanov, V. S. [1 ]
机构
[1] Perm State Tech Univ, Perm, Russia
关键词
quantum Renyi entropy; quantum Renyi distribution; Bloch equation for quantum Renyi distribution; Lindblad equation; Zwanzig equation; quantum dissipative system;
D O I
10.1007/s11232-008-0111-y
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We develop a formalism for describing quantum dissipative systems in statistical mechanics based on the quantum Renyi entropy. We derive the quantum Renyi distribution from the principle of maximum quantum Renyi entropy and differentiate this distribution (the temperature density matrix) with respect to the inverse temperature to obtain the Bloch equation. We then use the Feynman path integral with a modified Mensky functional to obtain a Lindblad-type equation. From this equation using projection operators, we derive the integro-differential equation for the reduced temperature statistical operator, an analogue of the Zwanzig equation in statistical mechanics, and find its formal solution in the form of a series in the class of summable functions.
引用
收藏
页码:1347 / 1355
页数:9
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