Momentum noise in a quantum point contact

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dc.creatorTajic, A.
dc.creatorKindermann, M.
dc.creatorBeenakker, C. W. J.
dc.date2002-06-17
dc.date.accessioned2026-07-07T02:45:52Z
dc.date.available2026-07-07T02:45:52Z
dc.descriptionBallistic electrons flowing through a constriction can transfer momentum to the lattice and excite a vibration of a free-standing conductor. We show (both numerically and analytically) that the electromechanical noise power P does not vanish on the plateaus of quantized conductance -- in contrast to the current noise. The dependence of $P$ on the constriction width can be oscillatory or stepwise, depending on the geometry. The stepwise increase amounts to an approximate quantization of momentum noise.
dc.description4 pages including 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0206306
dc.identifierhttp://arxiv.org/abs/cond-mat/0206306
dc.identifierPhys.Rev.B 66, 241301(R) (2002)
dc.identifierdoi:10.1103/PhysRevB.66.241301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19460
dc.subjectMesoscale and Nanoscale Physics
dc.titleMomentum noise in a quantum point contact
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