Dynamics of quasiparticle trapping in Andreev levels

D Olivares 1 A Levy Yeyati 1 C Girit 2 H Pothier 2 C Urbina 2
1 DFTMC - Departamento de Física Teórica de la Materia Condensada
2 QUANTRONICS - Quantronics Group
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : We present a theory describing the trapping of a quasiparticle in a prototypical Josephson junction , a single-channel 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 1 measuring the dynamics of quasiparticle trapping in a superconducting atomic contact coupled to a Josephson junction. With realistic parameters the theory provides a semi-quantitative description of the experimental results.
Document type :
Journal articles
Complete list of metadatas

Cited literature [13 references]  Display  Hide  Download
https://hal-cea.archives-ouvertes.fr/cea-01384760
Contributor : Dominique Girard <>
Submitted on : Thursday, October 20, 2016 - 2:51:09 PM
Last modification on : Tuesday, October 29, 2019 - 11:10:22 AM

File

1309.7283v3.pdf
Files produced by the author(s)

Identifiers

Collections

CEA | CNRS | DSM-IRAMIS | IRAMIS-SPEC | CEA-DRF

Citation

D Olivares, A Levy Yeyati, C Girit, H Pothier, C Urbina. Dynamics of quasiparticle trapping in Andreev levels. Physical Review B : Condensed matter and materials physics, American Physical Society, 2014, 89 (10), pp.104504. ⟨10.1103/PhysRevB.89.104504⟩. ⟨cea-01384760⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

172

Files downloads

157

Contact

Informations

CCSD