Why macroscopic quantum tunnelling in Josephson junctions differs from tunnelling of a quantum particle
dc.contributor.author | Sboychakov, A. O. | en_US |
dc.contributor.author | Savel'ev, Sergey | en_US |
dc.contributor.author | Rakhmanov, Alexander L. | en_US |
dc.contributor.author | Nori, Franco | en_US |
dc.date.accessioned | 2008-04-02T14:37:34Z | |
dc.date.available | 2008-04-02T14:37:34Z | |
dc.date.issued | 2007-10-01 | en_US |
dc.identifier.citation | Sboychakov, 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.issn | 0295-5075 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/58116 | |
dc.description.abstract | We 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.extent | 3118 bytes | |
dc.format.extent | 278218 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | IOP Publishing Ltd | en_US |
dc.title | Why macroscopic quantum tunnelling in Josephson junctions differs from tunnelling of a quantum particle | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Frontier 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, USA | en_US |
dc.contributor.affiliationother | Frontier 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 | en_US |
dc.contributor.affiliationother | Frontier Research System, The Institute of Physical and Chemical Research (RIKEN) - Wako-shi, Saitama, 351-0198, Japan; Department of Physics, Loughborough University - Loughborough LE11 3TU, UK | en_US |
dc.contributor.affiliationother | Frontier 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, UK | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/58116/2/epl_80_1_17009.pdf | |
dc.identifier.doi | http://dx.doi.org/10.1209/0295-5075/80/17009 | en_US |
dc.identifier.source | EPL | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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