多能级系统衰减与退相干的通用动态控制

Journal of optics. B, Quantum and semiclassical optics : journal of the European Optical Society Pub Date : 2005-10-01 DOI:10.1088/1464-4266/7/10/012

G. Gordon, G. Kurizki, A. Kofman

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引用次数: 13

摘要

提出了一种与任意零温度储层弱耦合的驱动多能级量子系统的动态修正衰变和退相干的统一理论。给出了两能级系统(量子位)不同相位和幅度调制的例子。通过一个准周期脉冲相位跳变的数值例子详细分析了多电平系统的调制。讨论了不同调制方式的优缺点。

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Universal dynamical control of decay and decoherence in multilevel systems

A unified theory is presented of dynamically modified decay and decoherence in driven multilevel quantum systems that are weakly coupled to arbitrary zero-temperature reservoirs. Examples of different phase and amplitude modulations are given for two-level systems (qubits). Analysis of modulations on multilevel systems is detailed with a numerical example using quasiperiodic impulsive phase jumps. The merits and disadvantages of the different modulation types are discussed.

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Journal of optics. B, Quantum and semiclassical optics : journal of the European Optical Society

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