Dynamical echo in two-state quantum systems

被引：1
|
作者：
Sankaranarayanan, R. [1 ]
Sheeba, Jane H. [1 ]
Lakshmanan, M. [1 ]
机构：
[1] Bharathidasan Univ, Dept Phys, Ctr Nonlinear Dynam, Tiruchirappalli 620024, India
来源：
CHAOS SOLITONS & FRACTALS | 2007年 / 33卷 / 05期
关键词：
D O I：
10.1016/j.chaos.2006.03.036
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Evolution of quantum fidelity for two-level systems is studied in the context of periodic echo. For time independent case, we obtain a formal condition on the governing Hamiltonians under which the systems display periodic quantum echo. In addition, a revisit of single spin-1/2 system exposed to uniform rotating magnetic field elucidates that the well known Rabi oscillation is a simple mechanism to generate such echoes. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1618 / 1624
页数：7
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