Dephasing due to nonstationary 1/f noise

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dc.creatorSchriefl, J.
dc.creatorClusel, M.
dc.creatorCarpentier, D.
dc.creatorDegiovanni, P.
dc.creatorMakhlin, Yu.
dc.date2004-04-27
dc.date.accessioned2026-07-07T02:57:51Z
dc.date.available2026-07-07T02:57:51Z
dc.descriptionMotivated by recent experiments with Josephson qubits we propose a new phenomenological model for 1/f noise due to collective excitations of interacting defects in the qubit's environment. At very low temperatures the effective dynamics of these collective modes are very slow leading to pronounced non-Gaussian features and nonstationarity of the noise. We analyze the influence of this noise on the dynamics of a qubit in various regimes and at different operation points. Remarkable predictions are absolute time dependences of a critical coupling and of dephasing in the strong coupling regime.
dc.description4 pages, 2 figures, to be published in the proceedings of the Vth Rencontres de Moriond in Mesoscopic Physics
dc.identifierhttps://arxiv.org/abs/cond-mat/0404641
dc.identifierhttp://arxiv.org/abs/cond-mat/0404641
dc.identifierIn: Quantum informarion and decoherence in nanosystems, pp. 287-290. Eds. D.C. Glattli, M. Sanquer, and J. Tran Thanh Van, The Gioi Publishers, 2004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23833
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleDephasing due to nonstationary 1/f noise
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