Decoherence from ensembles of two-level fluctuators

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dc.creatorSchriefl, Josef
dc.creatorMakhlin, Yuriy
dc.creatorShnirman, Alexander
dc.creatorSchön, Gerd
dc.date2005-12-22
dc.date.accessioned2026-07-07T06:53:38Z
dc.date.available2026-07-07T06:53:38Z
dc.description1/f noise, the major source of dephasing in Josephson qubits, may be produced by an ensemble of two-level systems. Depending on the statistical properties of their distribution, the noise distribution can be Gaussian or non-Gaussian. The latter situation is realized, for instance, when the distribution of coupling strengths has a slowly decaying power-law tail. In this regime questions of self-averaging and sample-to-sample fluctuations become crucial. We study the dephasing process for a class of distribution functions and analyze the self-averaging properties of the results.
dc.descriptionaccepted in New Journal of Physics
dc.identifierhttps://arxiv.org/abs/cond-mat/0512578
dc.identifierhttp://arxiv.org/abs/cond-mat/0512578
dc.identifierNew J. Phys. 8, 1 (2006)
dc.identifierdoi:10.1088/1367-2630/8/1/001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/105655
dc.subjectMesoscale and Nanoscale Physics
dc.titleDecoherence from ensembles of two-level fluctuators
dc.typetext

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