Characterization of coherent impurity effects in solid state qubits

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dc.creatorPaladino, E.
dc.creatorSassetti, M.
dc.creatorFalci, G.
dc.creatorWeiss, U.
dc.date2007-06-12
dc.date2008-01-28
dc.date.accessioned2026-07-07T08:56:20Z
dc.date.available2026-07-07T08:56:20Z
dc.descriptionWe propose a characterisation of the effects of bistable coherent impurities in solid state qubits. We introduce an effective impurity description in terms of a tunable spin-boson environment and solve the dynamics for the qubit coherences. The dominant rate characterizing the asymptotic time limit is identified and signatures of non-Gaussian behavior of the quantum impurity at intermediate times are pointed out. An alternative perspective considering the qubit as a measurement device for the spin-boson impurity is proposed.
dc.description4 pages, 5 figures. Replaced with published version, minor changes
dc.identifierhttps://arxiv.org/abs/0706.1747
dc.identifierhttp://arxiv.org/abs/0706.1747
dc.identifierPhys. Rev. B 77, 041303(R), 2008
dc.identifierdoi:10.1103/PhysRevB.77.041303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146574
dc.subjectStatistical Mechanics
dc.subjectMesoscale and Nanoscale Physics
dc.titleCharacterization of coherent impurity effects in solid state qubits
dc.typetext

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