Noise in an ac biased junction. Non-stationary Aharonov-Bohm effect

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dc.creatorLevitov, L. S.
dc.creatorLesovik, G. B.
dc.date1993-11-19
dc.date.accessioned2026-07-07T09:31:44Z
dc.date.available2026-07-07T09:31:44Z
dc.descriptionWe study excess noise in a quantum conductor in the presence of constant voltage and alternating external field. Due to a two particle interference effect caused by Fermi correlations the noise is sensitive to the phase of the time dependent transmission amplitude. We compute spectral density and show that at T=0 the noise has singular dependence on the {\rm dc} voltage $V$ and the {\rm ac} frequency $Ω$ with cusplike singularities at integer $eV/\hbarΩ$. For a metallic loop with an alternating flux the phase sensitivity leads to an oscillating dependence of the strengths of the cusps on the flux amplitude.
dc.description10 pages, RevTeX 3.0, figures by request
dc.identifierhttps://arxiv.org/abs/cond-mat/9311048
dc.identifierhttp://arxiv.org/abs/cond-mat/9311048
dc.identifierPhys. Rev. Lett. 72, 538 (1994)
dc.identifierdoi:10.1103/PhysRevLett.72.538
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158565
dc.subjectCondensed Matter
dc.titleNoise in an ac biased junction. Non-stationary Aharonov-Bohm effect
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