Dissipation and traversal time in Josephson junctions (Articolo in rivista)

Type
Label
  • Dissipation and traversal time in Josephson junctions (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.81.172506 (literal)
Alternative label
  • Ilaria Cacciari (1); Paolo Moretti (2); Anedio Ranfagni (1) (2010)
    Dissipation and traversal time in Josephson junctions
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ilaria Cacciari (1); Paolo Moretti (2); Anedio Ranfagni (1) (literal)
Pagina inizio
  • 172506 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 81 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • fasc.(17).American Physical Society. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 17 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) IFAC-CNR, Sesto Fiorentino, Firenze, Italia 2) ISC-CNR, Sezione di Firenze, Sesto Fiorentino, Firenze, Italia (literal)
Titolo
  • Dissipation and traversal time in Josephson junctions (literal)
Abstract
  • The various ways of evaluating dissipative effects in macroscopic quantum tunneling are re-examined. The results obtained by using functional integration, while confirming those of previously given treatments, enable a comparison with available experimental results relative to Josephson junctions. A criterion based on the shortening of the semiclassical traversal time ? of the barrier with regard to dissipation can be established, according to which ??/??N/Q, where Q is the quality factor of the junction and N is a numerical constant of order unity. The best agreement with the experiments is obtained for N=1.11, as it results from a semiempirical analysis based on an increase in the potential barrier caused by dissipative effects. (literal)
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