Dynamics of quasiparticle trapping in Andreev levels
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
The American Physical SocietyDate
2014-03-04Citation
10.1103/PhysRevB.89.104504
Physycal Review B 89.10 (2014): 104504
ISSN
1098-0121 (print); 1550-235X (online)DOI
10.1103/PhysRevB.89.104504Funded by
Financial support by EU FP7 SE2ND project, Spanish Mineco project FIS2011-26516, ANR contracts DOCFLUC and MASH, C’Nano and by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement No. PIIF-GA-2011-298415 is acknowledgedProject
info:eu-repo/grantAgreement/EC/FP7/271554; info:eu-repo/grantAgreement/EC/FP7/298415Editor's Version
http://dx.doi.org/10.1103/PhysRevB.89.104504Subjects
FísicaRights
© 2014 American Physical SocietyAbstract
We present a theory describing the trapping of a quasiparticle in a prototypical Josephson junction, a singlechannel superconducting weak link. We calculate the trapping and untrapping rates associated to absorption and emission of both photons and phonons. We show that the presence of an electromagnetic mode with frequency smaller than the gap gives rise to a rather abrupt transition between a fast-relaxation regime dominated by coupling to photons and a slow-relaxation regime dominated by coupling to phonons. This conclusion is illustrated by the analysis of a recent experiment [Zgirski, Bretheau, Le Masne, Pothier, Esteve, and Urbina, Phys. Rev. Lett. 106, 257003 (2011)] measuring the dynamics of quasiparticle trapping in a superconducting atomic contact coupled to a Josephson junction. With realistic parameters, the theory provides a semiquantitative description of the experimental results
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Google Scholar:Olivares, D. G.
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Levy-Yeyati Mizrahi, Alfredo
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Bretheau, L.
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Pothier, H.
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Urbina, C.
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Girit, Ç. Ö.
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