Charge Oscillations in Superconducting Nanodevices Coupled to External Environments

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dc.creatorAlicki, Robert
dc.creatorBenatti, Fabio
dc.creatorFloreanini, Roberto
dc.date2007-11-06
dc.date.accessioned2026-07-07T11:12:56Z
dc.date.available2026-07-07T11:12:56Z
dc.descriptionCharge oscillations in certain nanodevices, more specifically the so-called Superconducting Cooper Pair Boxes (SCB), are usually interpreted as an effect of macroscopic quantum coherence; an alternative explanation is however possible in terms of the Gross-Pitaewski equation for the classical order parameter. These two explanations are based on different quantum states assigned to the SCB, occupation number states in the first case, coherent-like states in the second one. We show that, when the SCB is weakly coupled to an external source of noise and dissipation, occupation number states are much more unstable than coherent ones.
dc.description8 pages, LaTeX
dc.identifierhttps://arxiv.org/abs/0711.0812
dc.identifierhttp://arxiv.org/abs/0711.0812
dc.identifierPhys.Lett.A372:1968-1971,2008
dc.identifierdoi:10.1016/j.physleta.2007.10.085
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191549
dc.subjectQuantum Physics
dc.subjectOther Condensed Matter
dc.subjectHigh Energy Physics - Theory
dc.titleCharge Oscillations in Superconducting Nanodevices Coupled to External Environments
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