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arXiv 1405.3129cond-mat.mes-hallquant-ph
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在耦合到电荷量子比特的纳米机械谐振器中产生薛定谔猫态

Generating the Schrodinger cat state in a nanomechanical resonator coupled to a charge qubit

Jian-Qi Zhang, Wei Xiong, Shuo Zhang, Yong Li, Mang Feng

摘要:

我们提出了一个方案,用于产生薛定谔猫态的几何操作的基础上,通过纳米机械谐振器耦合到超导电荷量子比特。由两个强经典场驱动的电荷量子比特与纳米机械谐振器的高频声子模式相互作用。在操作过程中,电荷量子比特没有经历真正的跃迁,而纳米机械谐振器的声子模式在相空间中沿着不同的路径移动,这取决于电荷量子比特的状态,这产生了薛定谔猫态。考虑环境噪声的影响,证明了该方案的鲁棒性,并讨论了该方案的可行性。

英文摘要:

We propose a scheme for generating the Schrödinger cat state based on geometric operations by a nanomechanical resonator coupled to a superconducting charge qubit. The charge qubit, driven by two strong classical fields, interacts with a high-frequency phonon mode of the nanomechanical resonator. During the operation, the charge qubit undergoes no real transitions, while the phonon mode of the nanomechanical resonator is displaced along different paths in the phase space, dependent on the states of the charge qubit, which yields the Schrödinger cat state. The robustness of the scheme is justified by considering noise from environment, and the feasibility of the scheme is discussed.

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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