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arXiv quant-ph/0008070quant-ph
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马尔可夫量子动力学的通用模拟

Universal simulation of Markovian quantum dynamics

Dave Bacon, Andrew M. Childs, Isaac L. Chuang, Julia Kempe, Debbie W. Leung, Xinlan Zhou

摘要:

虽然执行任意幺正操作以模拟封闭量子系统的动力学的条件是很好理解的,但是对于对应于开放量子系统的动力学的更一般的量子操作(也称为超算子)类别,情况并非如此。我们提出了一个生成马尔可夫量子动力学的框架,并研究了普遍性所需的资源。对于单个量子比特的情况,我们表明,一个单一的非幺正过程是必要的,并足以产生所有的单位马尔可夫量子动力学,而一组参数化的一个连续参数的过程是需要在一般情况下。我们也得到了在更高的维度单位的情况下的初步结果。

英文摘要:

Although the conditions for performing arbitrary unitary operations to simulate the dynamics of a closed quantum system are well understood, the same is not true of the more general class of quantum operations (also known as superoperators) corresponding to the dynamics of open quantum systems. We propose a framework for the generation of Markovian quantum dynamics and study the resources needed for universality. For the case of a single qubit, we show that a single nonunitary process is necessary and sufficient to generate all unital Markovian quantum dynamics, whereas a set of processes parametrized by one continuous parameter is needed in general. We also obtain preliminary results for the unital case in higher dimensions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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