Quantum-squeezing effects of strained multilayer graphene NEMS.
Quantum-squeezing effects of strained multilayer graphene NEMS.
复制标题
应变多层石墨烯NEMS的量子压缩效应
DOI：
10.1186/1556-276x-6-355
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发表时间：
2011-04-20
影响因子：
--
通讯作者：
Wang Y
中科院分区：
文献类型：
--
作者：
Xu Y;Yan S;Jin Z;Wang Y
量子压缩可以通过压缩海森伯关系中两个物理量的一个期望涨落来提高极限测量精度。我们提出了一种通过石墨烯纳米机电系统(NEMS)获得压缩态的方案，该方案原理上利用了石墨烯的厚度。研究了实现压缩态的两个关键判据：应变多层石墨烯NEMS的零点位移不确定度和压缩因子。我们的研究通过压缩减少量子噪声，提高了石墨烯纳米换能器的测量精度。
Quantum squeezing can improve the ultimate measurement precision by squeezing one desired fluctuation of the two physical quantities in Heisenberg relation. We propose a scheme to obtain squeezed states through graphene nanoelectromechanical system (NEMS) taking advantage of their thin thickness in principle. Two key criteria of achieving squeezing states, zero-point displacement uncertainty and squeezing factor of strained multilayer graphene NEMS, are studied. Our research promotes the measured precision limit of graphene-based nano-transducers by reducing quantum noises through squeezed states.