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arXiv quant-ph/0008101quant-ph
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开放量子系统动力学的控制

Control of open quantum systems dynamics

Seth Lloyd, Lorenza Viola

摘要:

我们研究了影响任意量子动力学所需的控制资源。我们表明,在量子系统上进行测量的能力,结合通过相干控制反馈测量结果的能力,允许控制系统遵循任何期望的开放系统演化。这种通用控制原则上可以通过仅重复应用两个相干控制操作和简单的“是-否”测量来实现。

英文摘要:

We investigate the control resources needed to effect arbitrary quantum dynamics. We show that the ability to perform measurements on a quantum system, combined with the ability to feed back the measurement results via coherent control, allows one to control the system to follow any desired open-system evolution. Such universal control can be achieved, in principle, through the repeated application of only two coherent control operations and a simple ``Yes-No'' measurement.

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