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arXiv 1111.5446cond-mat.mes-hallquant-ph
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石墨烯谐振器中的机械猫态

Mechanical cat states in graphene resonators

A. Voje, J. M. Kinaret, A. Isacsson

摘要:

我们研究了具有简并弯曲模的对称纳米机械石墨烯谐振器的量子动力学。在两个背栅上施加电压脉冲,可以有选择地激励和操纵膜的弯曲振动。对于石墨烯,非线性响应对于与零点波动的幅度相当的幅度已经变得重要。我们表明,使用分析和数值方法,这允许创建猫一样的叠加相干态以及叠加相干猫一样的非产品状态。

英文摘要:

We study the quantum dynamics of a symmetric nanomechanical graphene resonator with degenerate flexural modes. Applying voltage pulses to two back gates, flexural vibrations of the membrane can be selectively actuated and manipulated. For graphene, nonlinear response becomes important already for amplitudes comparable to the magnitude of zero point fluctuations. We show, using analytical and numerical methods, that this allows for creation of cat-like superpositions of coherent states as well as superpositions of coherent cat-like non-product states.

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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