Detection of Tiny Mechanical Motion by Means of the Ratchet Effect - Condensed Matter > Mesoscale and Nanoscale PhysicsReport as inadecuate




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Abstract: We propose a position detection scheme for a nanoelectromechanical resonatorbased on the ratchet effect. This scheme has an advantage of being a dcmeasurement. We consider a three-junction SQUID where a part of thesuperconducting loop can perform mechanical motion. The response of the ratchetto a dc current is sensitive to the position of the resonator and the effectcan be further enhanced by biasing the SQUID with an ac current. We discuss thefeasibility of the proposed scheme in existing experimental setups.



Author: Stefano Pugnetti, Yaroslav M. Blanter, Fabrizio Dolcini, Rosario Fazio

Source: https://arxiv.org/







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