Equilibrium currents in quantum double ring system: A non-trivial role of system-reservoir coupling

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dc.creatorBenjamin, Colin
dc.creatorJayannavar, A. M.
dc.date2003-09-05
dc.date2003-09-06
dc.date.accessioned2026-07-07T02:53:19Z
dc.date.available2026-07-07T02:53:19Z
dc.descriptionAmperes law states that the magnetic moment of a ring is given by current times the area enclosed. Also from equilibrium statistical mechanics it is known that magnetic moment is the derivative of free energy with respect to magnetic field. In this work we analyze a quantum double ring system interacting with a reservoir. A simple S-Matrix model is used for system-reservoir coupling. We see complete agreement between the aforesaid two definitions when coupling between system and reservoir is weak, increasing the strength of coupling parameter however leads to disagreement between the two. Thereby signifying the important role played by the coupling parameter in mesoscopic systems.
dc.description6 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0309133
dc.identifierhttp://arxiv.org/abs/cond-mat/0309133
dc.identifierInternational Journal of Modern Physics B, Vol. 18, No. 25 (2004) 3343-3353.
dc.identifierdoi:10.1142/S0217979204026457
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22167
dc.subjectMesoscale and Nanoscale Physics
dc.titleEquilibrium currents in quantum double ring system: A non-trivial role of system-reservoir coupling
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