Quantum-squeezing effects of strained multilayer graphene NEMS

Abstract

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.

Graphene versus MoS2: A short review

“…Nanoresonators based on two-dimensional materials such as graphene and SLMoS 2 are promising candidates for ultra-sensitive mass sensing and detection because of their large surface areas and small masses [86][87][88][89][90][91][92][93][94]. For sensing applications, it is important that the nanoresonator exhibits a high Q-factor because the sensitivity of a nanoresonator is inversely proportional to its Q-factor [95].…”

Graphene Versus MoS2: a Short Review

“…Nanoresonators based on two-dimensional materials such as graphene and SLMoS 2 are promising candidates for ultra-sensitive mass sensing and detection because of their large surface areas and small masses. [86][87][88][89][90][91][92][93][94] For sensing applications, it is important that the nanoresonator exhibits a high Q-factor because the sensitivity of a nanoresonator is inversely proportional to its Qfactor. 95 The Q-factor is a quantity that records the total number of oscillation cycles of the resonator before its resonant oscillation decays considerably.…”

Classifiable Limiting Mass Change Detection in a Graphene Resonator Using Applied Machine Learning

“…The small size, light mass, and fast switching speed make nanoelectromechanical systems (NEMS) attractive in research and applications . Among NEMS devices, nanomechanical resonator devices are being used in a wide range of research fieldsfrom fundamental physics for studying quantum mechanical limits − to practical applications such as the ultrasensitive mass detection and single molecule bio-sensing. − A simple spring model is used to describe the mechanism of mass detection using NEMS. When a mass is added to a resonator, the mechanical resonance frequency is proportionally down-shifted.…”