Quantum-squeezing effects of strained multilayer graphene NEMS
1 Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
2 State Key Laboratory of Transducer Technology, Shanghai Institute of Metallurgy Chinese Academy of Sciences, Shanghai 100050, China
Nanoscale Research Letters 2011, 6:355 doi:10.1186/1556-276X-6-355Published: 20 April 2011
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.