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arXiv 1301.2152quant-ph
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探测不可触及的环境作为量子计算的资源

Probing untouchable environment as a resource for quantum computing

Masaki Owari, Koji Maruyama, Takeji Takui, Go Kato

摘要:

当操纵量子系统$S$、其周围系统或\textit{environment}时,$E$会引起不必要的效应。这主要是由于它的浩瀚和缺乏知识的哈密尔顿$H_{SE}$,管理$E$内部的动力学和与$S$的相互作用。$H_{SE}$的细节通常很难识别,因为$E$很难直接测量或控制。然而,在这里,我们表明,它是可能的探测和控制的一部分,如果不是全部,涉及$E$的动态,在时间尺度内,它的有效尺寸可以看到有限的。也就是说,作为量子计算机的一部分,我们可以让嘈杂的环境对我们有利。

英文摘要:

When manipulating a quantum system $S$, its surrounding system, or \textit{environment}, $E$ induces unwanted effects. It is mainly due to its vastness and the lack of knowledge about the Hamiltonian $H_{SE}$ that governs the dynamics inside $E$ and the interaction with $S$. The detail of $H_{SE}$ is usually extremely hard to identify, since $E$ can hardly be measured or controlled directly. Nevertheless, here we show that it is possible to probe and control a part of, if not all, the dynamics involving $E$, within the timescale in which its effective dimension can be seen finite. That is, we may be able to let a noisy environment work in our favor as a part of quantum computer.

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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