Theoretical Model to Explain Excess of Quasiparticles in Superconductors

Anton Bespalov, Manuel Houzet, Julia S. Meyer, Yuli V. Nazarov

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)
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Abstract

Experimentally, the concentration of quasiparticles in gapped superconductors always largely exceeds the equilibrium one at low temperatures. Since these quasiparticles are detrimental for many applications, it is important to understand theoretically the origin of the excess. We demonstrate in detail that the dynamics of quasiparticles localized at spatial fluctuations of the gap edge becomes exponentially slow. This gives rise to the observed excess in the presence of a vanishingly weak nonequilibrium agent.

Original languageEnglish
Article number117002
Pages (from-to)1-5
Number of pages5
JournalPhysical Review Letters
Volume117
Issue number11
DOIs
Publication statusPublished - 9 Sep 2016

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