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Why macroscopic quantum tunnelling in Josephson junctions differs from tunnelling of a quantum particle

dc.contributor.authorSboychakov, A. O.en_US
dc.contributor.authorSavel'ev, Sergeyen_US
dc.contributor.authorRakhmanov, Alexander L.en_US
dc.contributor.authorNori, Francoen_US
dc.date.accessioned2008-04-02T14:37:34Z
dc.date.available2008-04-02T14:37:34Z
dc.date.issued2007-10-01en_US
dc.identifier.citationSboychakov, A. O.; Savel'ev, Sergey; Rakhmanov, A. L.; Nori, Franco (2007). "Why macroscopic quantum tunnelling in Josephson junctions differs from tunnelling of a quantum particle." EPL. 80(1): 17009 (5pp). <http://hdl.handle.net/2027.42/58116>en_US
dc.identifier.issn0295-5075en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/58116
dc.description.abstractWe show that the macroscopic quantum tunnelling of a fluxon in a Josephson junction cannot be described, even qualitatively, as the tunnelling of a quantum particle in a potential U(), where the phase difference plays the role of particle position, if the length of the junction d exceeds a fluxon length. We calculate the probability per unit time of tunnelling (or escape rate), Γ, which has a form Γ=A exp(-B). In contrast to particles, where the B is proportional to d, our field-theory predicts a different behavior of B for either usual, 0–π, or stacks of Josephson junctions, giving rise to a renormalization of Γ by many orders of magnitude.en_US
dc.format.extent3118 bytes
dc.format.extent278218 bytes
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/pdf
dc.publisherIOP Publishing Ltden_US
dc.titleWhy macroscopic quantum tunnelling in Josephson junctions differs from tunnelling of a quantum particleen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumFrontier Research System, The Institute of Physical and Chemical Research (RIKEN) - Wako-shi, Saitama, 351-0198, Japan; MCTP, CSCS, Department of Physics, University of Michigan - Ann Arbor, MI 48109-1040, USAen_US
dc.contributor.affiliationotherFrontier Research System, The Institute of Physical and Chemical Research (RIKEN) - Wako-shi, Saitama, 351-0198, Japan; Institute for Theoretical and Applied Electrodynamics Russian Academy of Sciences - 125412 Moscow, Russiaen_US
dc.contributor.affiliationotherFrontier Research System, The Institute of Physical and Chemical Research (RIKEN) - Wako-shi, Saitama, 351-0198, Japan; Department of Physics, Loughborough University - Loughborough LE11 3TU, UKen_US
dc.contributor.affiliationotherFrontier Research System, The Institute of Physical and Chemical Research (RIKEN) - Wako-shi, Saitama, 351-0198, Japan; Institute for Theoretical and Applied Electrodynamics Russian Academy of Sciences - 125412 Moscow, Russia; Department of Physics, Loughborough University - Loughborough LE11 3TU, UKen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/58116/2/epl_80_1_17009.pdf
dc.identifier.doihttp://dx.doi.org/10.1209/0295-5075/80/17009en_US
dc.identifier.sourceEPLen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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