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arXiv 0906.4045cond-mat.mes-hall
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量子点中电子自旋的量子计算

Quantum Computing with Electron Spins in Quantum Dots

Robert Andrzej Żak, Beat Röthlisberger, Stefano Chesi, Daniel Loss

摘要:

综述了量子点中自旋量子比特实现的几个问题。我们首先介绍了量子计算的标准模型及其实现的基本准则。其他替代配方,如基于测量和绝热量子计算进行了简要讨论。然后,我们专注于自旋量子位在单和双GaAs电子量子点和回顾最近的实验成果,相对于初始化,相干操作和读出的自旋态。我们广泛地讨论了这个系统中的退相干问题,特别强调其理论治疗和可能的方法来克服它。

英文摘要:

Several topics on the implementation of spin qubits in quantum dots are reviewed. We first provide an introduction to the standard model of quantum computing and the basic criteria for its realization. Other alternative formulations such as measurement-based and adiabatic quantum computing are briefly discussed. We then focus on spin qubits in single and double GaAs electron quantum dots and review recent experimental achievements with respect to initialization, coherent manipulation and readout of the spin states. We extensively discuss the problem of decoherence in this system, with particular emphasis on its theoretical treatment and possible ways to overcome it.

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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