Can mesoscopic fluctuations reverse the supercurrent through a disordered Josephson junction?

Simple item page
dc.creatorTitov, M.
dc.creatorJacquod, Ph.
dc.creatorBeenakker, C. W. J.
dc.date2001-06-01
dc.date.accessioned2026-07-07T02:41:38Z
dc.date.available2026-07-07T02:41:38Z
dc.descriptionWe calculate the Josephson coupling energy $U_J(ϕ)$ (related to the supercurrent $I=(2e/\hbar) dU_J/dϕ$) for a disordered normal metal between two superconductors with a phase difference $ϕ$. We demonstrate that the symmetry of the scattering matrix of non-interacting quasiparticles in zero magnetic field implies that $U_J(ϕ)$ has a minimum at $ϕ=0$. A maximum (that would lead to a $π$-junction or negative superfluid density) is excluded for any realization of the disorder.
dc.description2 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0106018
dc.identifierhttp://arxiv.org/abs/cond-mat/0106018
dc.identifierPhys. Rev. B 65, 012504 (2002)
dc.identifierdoi:10.1103/PhysRevB.65.012504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17817
dc.subjectMesoscale and Nanoscale Physics
dc.titleCan mesoscopic fluctuations reverse the supercurrent through a disordered Josephson junction?
dc.typetext

Files

Collections

arXiv