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Title: Phase slips in superconducting weak links

Authors:
; ;
Publication Date:
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1341270
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 1; Related Information: CHORUS Timestamp: 2017-01-24 16:52:54; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Kimmel, Gregory, Glatz, Andreas, and Aranson, Igor S. Phase slips in superconducting weak links. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.014518.
Kimmel, Gregory, Glatz, Andreas, & Aranson, Igor S. Phase slips in superconducting weak links. United States. doi:10.1103/PhysRevB.95.014518.
Kimmel, Gregory, Glatz, Andreas, and Aranson, Igor S. Tue . "Phase slips in superconducting weak links". United States. doi:10.1103/PhysRevB.95.014518.
@article{osti_1341270,
title = {Phase slips in superconducting weak links},
author = {Kimmel, Gregory and Glatz, Andreas and Aranson, Igor S.},
abstractNote = {},
doi = {10.1103/PhysRevB.95.014518},
journal = {Physical Review B},
number = 1,
volume = 95,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2017},
month = {Tue Jan 24 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevB.95.014518

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  • Superconducting vortices and phase slips are primary mechanisms of dissipation in superconducting, superfluid, and cold-atom systems. While the dynamics of vortices is fairly well described, phase slips occurring in quasi-one- dimensional superconducting wires still elude understanding. The main reason is that phase slips are strongly nonlinear time-dependent phenomena that cannot be cast in terms of small perturbations of the superconducting state. Here we study phase slips occurring in superconducting weak links. Thanks to partial suppression of superconductivity in weak links, we employ a weakly nonlinear approximation for dynamic phase slips. This approximation is not valid for homogeneous superconducting wires andmore » slabs. Using the numerical solution of the time-dependent Ginzburg-Landau equation and bifurcation analysis of stationary solutions, we show that the onset of phase slips occurs via an infinite period bifurcation, which is manifested in a specific voltage-current dependence. Our analytical results are in good agreement with simulations.« less
  • We study the rate of quantum phase slips in an ultranarrow superconducting nanowire exposed to weak electromagnetic radiations. The superconductor is in the dirty limit close to the superconducting-insulating transition, where fluxoids move in strong dissipation. We use a semiclassical approach and show that external radiation stimulates a significant enhancement in the probability of quantum phase slips.