Quantum fidelity decay of classically integrable dynamics with vanishing time averaged perturbation

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概要

• 論文の詳細を見る

• この論文は国立情報学研究所の電子図書館事業により電子化されました。We discuss quantum fidelity decay of classically regular dynamics, in particular for an important special case of vanishing time averaged perturbation operator. We show that quantum fidelity of individual initial states exhibits three different regimes in time: (i) for short times t < t_1 it follows the corresponding classical fidelity, (ii) then it freezes at a constant value - the plateau, (iii) only after much longer time t_2 it again starts to decay. This freezing of fidelity is purely quantum phenomenon and could find applications in improving stability of quantum devices.

• 物性研究刊行会の論文
• 2004-08-20

著者

• Prosen Tomaz

  Physics Department Faculty Of Mathematics And Physics University Of Ljubljana

• Znidaric Marko

  Physics Department Faculty Of Mathematics And Physics University Of Ljubljana

• Prosen Tomaz

  Physics Department, Faculty of Mathematics and Physics University of Ljubljana

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