Entropic uncertainty and the quantum phase transition in the Dicke model

被引:31
|
作者
Romera, E. [1 ,2 ]
Calixto, M. [3 ]
Nagy, A. [4 ]
机构
[1] Univ Granada, Dept Fis Atom Mol & Nucl, E-18071 Granada, Spain
[2] Univ Granada, Inst Carlos I Fis Teor & Computac, E-18071 Granada, Spain
[3] Univ Granada, Dept Matemat Aplicada, E-18071 Granada, Spain
[4] Univ Debrecen, Dept Theoret Phys, H-4010 Debrecen, Hungary
关键词
INFORMATION ENTROPY; MECHANICS; FIELD;
D O I
10.1209/0295-5075/97/20011
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that the description of the quantum phase transition in terms of the entropic uncertainty relation turns out to be more suitable than in terms of the standard variance-based uncertainty relation. The entropic uncertainty relation detects the quantum phase transition in the Dicke model and it provides a correct description of the quantum fluctuations or quantum uncertainty of the system. Copyright (C) EPLA, 2012
引用
收藏
页数:5
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