Theoretical comparison of quantum and thermal noise squeezing in silicon and graphene nanoresonators

Details Theoretical comparison of quantum and thermal noise squeezing in silicon and graphene nanoresonators Theoretical comparison of quantum and thermal noise squeezing in silicon and graphene nanoresonators

2011-01-28

arxiv.org/abs/1101.5484v1

Physics

Quantum Physics

4pages,5figures

Scientific paper

We theoretically compared quantum noise squeezing differences between silicon and graphene nanoresonators based on experimental structure parameters. The conditions to achieve squeezed states of silicon and graphene have been discussed. According to our theoretical analysis, graphene nanoresonators can obtain a much smaller squeezing factor than silicon, taking advantage of their thin thickness. Both the quantum noise and thermal noise (Brownian motion) of typical monolayer graphene nanoresonator can be reduced by 12.58 dB at T = 5 K with a pump voltage of 5 V.

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