Entropy and and Information of a harmonic oscillator in a time-varying electric field in 2D and 3D noncommutative spaces

被引:9
|
作者
Nascimento, J. P. G. [1 ]
Aguiar, V. [1 ]
Guedes, I. [1 ]
机构
[1] Univ Fed Ceara, Dept Fis, Campus PICI,Caixa Postal 6030, BR-60455760 Fortaleza, Ceara, Brazil
关键词
Fisher information; Shannon entropy; Time-dependent systems; Noncommutative phase space; Lewis and Riesenfeld method; PHASE-SPACE; UNCERTAINTY RELATIONS; FISHER INFORMATION; SHANNON ENTROPY; QUANTUM; SYSTEM; PLANE; MECHANICS; STATES;
D O I
10.1016/j.physa.2017.02.018
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We analyze the noncommutativity effects on the Fisher information (F-(r) over cap,((p) over cap)) and Shannon entropies (S-(r) over cap,((p) over cap)) of a harmonic oscillator immersed in a time-varying electric field in two and three dimensions. We find the exact solutions of the respective time-dependent Schrodinger equation and use them to calculate the Fisher information and the Shannon entropy for the simplest case corresponding to the lowest-lying state of each system. While there is no problem in defining the Shannon entropy for noncommutating spaces, the definition of the Fisher information have to be modified to satisfy the Cramer-Rao inequalities. For both systems we observe how the Fisher information and Shannon entropy in position and momentum change due to the noncommutativity of the space. We verify that the Bialynicki-Birula-Mycielski (BBM) entropic uncertainty relation still holds in the systems considered. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:65 / 77
页数:13
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