Coherent-incoherent transition in a Cooper-pair-box coupled to a quantum oscillator: an equilibrium approach

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dc.creatorHuang, Ying-Hua
dc.creatorWong, Hang
dc.creatorChen, Zhi-De
dc.date2008-07-22
dc.date.accessioned2026-07-07T12:11:33Z
dc.date.available2026-07-07T12:11:33Z
dc.descriptionTemperature effect on quantum tunneling in a Cooper-pair-box coupled to a quantum oscillator is studied by both numerical and analytical calculations. It is found that, in strong coupling regions, coherent tunneling of a Cooper-pair-box can be destroyed by its coupling to a quantum oscillator and the tunneling becomes thermally activated as the temperature rises, leading to failure of the Cooper-pair-box. The transition temperature between the coherent tunneling and thermo-activated hopping is determined and physics analysis based on small polaron theory is also provided.
dc.description8 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0807.3475
dc.identifierhttp://arxiv.org/abs/0807.3475
dc.identifierThe Open Condensed Matter Physics Journal 1, 19 (2008)
dc.identifierdoi:10.2174/1874186X00801010019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210250
dc.subjectMesoscale and Nanoscale Physics
dc.titleCoherent-incoherent transition in a Cooper-pair-box coupled to a quantum oscillator: an equilibrium approach
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