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arXiv quant-ph/0604067quant-ph
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相互作用连续时间量子行走的速度和熵

Speed and entropy of an interacting continuous time quantum walk

Diego de Falco, Dario Tamascelli

摘要:

我们提出了一些动态和熵的考虑,实现一个自治机器的时钟的连续时间量子行走的演变。在一个简单的模型上,我们研究了时钟子系统的Lindblad演化,将其熵的演化与时钟的波包的传播联系起来。我们探索可能的方法,减少在时钟子系统中产生的熵,因为它相当于一个赤字的概率找到目标状态的计算。因此,我们要研究放弃一些关于计时机制应该如何运作的传统偏见的好处。

英文摘要:

We present some dynamic and entropic considerations about the evolution of a continuous time quantum walk implementing the clock of an autonomous machine. On a simple model, we study in quite explicit terms the Lindblad evolution of the clocked subsystem, relating the evolution of its entropy to the spreading of the wave packet of the clock. We explore possible ways of reducing the generation of entropy in the clocked subsystem, as it amounts to a deficit in the probability of finding the target state of the computation. We are thus lead to examine the benefits of abandoning some classical prejudice about how a clocking mechanism should operate.

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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