论文标题
通过单分子中的量子隧穿编码的无收缩量子态
Contraction-free quantum state encoding by quantum tunneling in single molecules
论文作者
论文摘要
量子计算是一种独特的计算方法，它有望通过古典计算机无法实现的巨大性能，尽管必须解决一些问题以实现实用的量子计算系统以易于使用。在这里，我们提出了一个新的系统和理论，用于量子计算，该计算采用电极之间采用单分子限制。该系统的引人注目的特征是（i）一种表现出量子隧穿的单个分子可以被视为一系列门，（ii）量子隧穿可以被编码到量子位阵列上，并观察到叠加状态，而没有叠加状态，并且（iii）通过量子隧道来进行量子计算。根据电导值，将腺嘌呤分子作为电极之间的单个分子，而电导数据被编码到包括纠缠状态在内的量子状态。作为新量子系统的应用，证明了基于量子隧穿的量子计算的分子识别。
Quantum computing is a unique computational approach that promises tremendous performance that cannot be achieved by classical computers, although several problems must be resolved to realize a practical quantum computing system for easy use. Here, we propose a new system and theory for quantum computing that employs single molecule confinement between electrodes. The striking features of this system are (i) an individual molecule that exhibits quantum tunneling can be regarded as a sequence of quantum gates, (ii) the quantum tunneling can be encoded onto an array of quantum bits and observed without the contraction of superposition states, and (iii) quantum computing by quantum tunneling can be performed at room temperature. An adenine molecule is adopted as the single molecule between electrodes, and conductance data are encoded onto quantum states including entangled states, depending on the conductance values. As an application of the new quantum system, molecule identification based on quantum computing by quantum tunneling is demonstrated.
