Regensburg 2019 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 19: Poster Session: Disordered Quantum Systems
TT 19.1: Poster
Montag, 1. April 2019, 15:00–18:30, Poster D
Weak localization corrections to the thermal conductivity in disordered conventional superconductors — •Lucía González1,2, Gianluigi Catelani1, and Fabian Hassler2 — 1JARA-Institute for Quantum Information (PGI-11), Forschungszentrum Jülich, D-52425 Jülich, Germany — 2JARA-Institute for Quantum Information, RWTH Aachen University, D-52056 Aachen, Germany
Particle diffusion in a disordered system is affected by quantum interference between self intersecting paths giving rise to weak localization and weak anti-localization effects, which respectively decrease or increase the probability of diffusion.
We study the corrections to the thermal conductivity in conventional superconductors due to such effects using semiclassical Green's functions. We analyze the repercussions of time reversal symmetry breaking by including a supercurrent flow.