Multiphoton transitions in a macroscopic quantum two-state system

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dc.creatorSaito, S.
dc.creatorThorwart, M.
dc.creatorTanaka, H.
dc.creatorUeda, M.
dc.creatorNakano, H.
dc.creatorSemba, K.
dc.creatorTakayanagi, H.
dc.date2004-03-17
dc.date.accessioned2026-07-07T02:56:59Z
dc.date.available2026-07-07T02:56:59Z
dc.descriptionWe have observed multiphoton transitions between two macroscopic quantum-mechanical superposition states formed by two opposite circulating currents in a superconducting loop with three Josephson junctions. Resonant peaks and dips of up to three-photon transitions were observed in spectroscopic measurements when the system was irradiated with a strong RF-photon field. The widths of the multiphoton absorption dips are shown to scale with the Bessel functions in agreement with theoretical predictions derived from the Bloch equation or from a spin-boson model.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0403425
dc.identifierhttp://arxiv.org/abs/cond-mat/0403425
dc.identifierPhys. Rev. Lett. 93, 037001 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.037001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23547
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleMultiphoton transitions in a macroscopic quantum two-state system
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