Measuring the Momentum of a Nanomechanical Oscillator through the Use of Two Tunnel Junctions

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dc.creatorDoiron, C. B.
dc.creatorTrauzettel, B.
dc.creatorBruder, C.
dc.date2007-07-18
dc.date2008-01-16
dc.date.accessioned2026-07-07T08:54:26Z
dc.date.available2026-07-07T08:54:26Z
dc.descriptionWe propose a way to measure the momentum p of a nanomechanical oscillator. The p-detector is based on two tunnel junctions in a Aharonov-Bohm-type setup. One of the tunneling amplitudes depends on the motion of the oscillator, the other one not. Although the coupling between the detector and the oscillator is assumed to be linear in the position x of the oscillator, it turns out that the finite-frequency noise output of the detector will in general contain a term proportional to the momentum spectrum of the oscillator. This is a true quantum phenomenon, which can be realized in practice if the phase of the tunneling amplitude of the detector is tuned by the Aharonov-Bohm flux Phi to a p-sensitive value.
dc.descriptionNew title. Published version
dc.identifierhttps://arxiv.org/abs/0707.2709
dc.identifierhttp://arxiv.org/abs/0707.2709
dc.identifierPhys. Rev. Lett. 100, 027202 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.027202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145932
dc.subjectMesoscale and Nanoscale Physics
dc.titleMeasuring the Momentum of a Nanomechanical Oscillator through the Use of Two Tunnel Junctions
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