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

页码：1618 / 1624

页数：7

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