Traversal time in macroscopic quantum tunneling
Anno: 1999
Autori: Moretti P., Mugnai D., Ranfagni A., Cetica M.
Affiliazione autori: Istituto di Ricerca sulle Onde Elettromagnetiche “Nello Carrara”- CNR, Via Panciatichi 64, 50127 Firenze, Italy;
Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy
Abstract: We present an interpretation of traversal time results in Josephson junctions, based on a stochastic model of tunneling processes which include dissipative effects. With the use of semiclassical analysis, the experiments performed up until now have supplied a time duration of the order of 10(2) ps (a remarkably long time, even considering the macroscopic nature of the systems under examination). According to our interpretation, this duration is only the imaginary part of a complex quantity, the real part of which (presumably the true physical duration) lies in the range of st few picoseconds.
Giornale/Rivista: PHYSICAL REVIEW A
Volume: 60 (6) Da Pagina: 5087 A: 5090
Parole chiavi: JOSEPHSON-JUNCTIONS; DISSIPATION; EQUATIONDOI: 10.1103/PhysRevA.60.5087Citazioni: 7dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui