2017/07/22 by Yahor Savich, L. I. Glazman, Leonid Glazman +1 · 17 citations
Physics and Astronomy · #Coherence (philosophical gambling strategy) #Coherence length #Condensed matter physics #Electron #Fractionalization #Law #Magnetic field #Mean free path #Phonon #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quasiparticle #Relaxation (psychology) #Superconducting coherence length #Superconductivity #Superconductivity in MgB2 and Alloys #Vortex #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.96.104510
published in Physical review. B./Physical review. B 96(10) (American Physical Society) · 12 pages, 4 figures
arxiv created 2017/07/22 · openalex publication_date 2017/09/20 · arxiv updated 2017/09/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We examine energy relaxation of nonequilibrium quasiparticles in ``dirty'' superconductors with the electron mean free path much shorter than the superconducting coherence length. Relaxation of low-energy nonequilibrium quasiparticles is dominated by phonon emission. We derive the corresponding collision integral and find the quasiparticle relaxation rate. The latter is sensitive to the breaking of time reversal symmetry (TRS) by a magnetic field (or magnetic impurities). As a concrete application of the developed theory, we address quasiparticle trapping by a vortex and a current-biased constriction. We show that trapping of hot quasiparticles may predominantly occur at distances from the vortex core, or the constriction, significantly exceeding the superconducting coherence length.