SKM 2021 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 22: Poster Session: Disordered and Granular Superconductors: Fundamentals and Applications in Quantum Technology

TT 22.9: Poster

Donnerstag, 30. September 2021, 13:30–16:00, P

Multifractal correlations of the local density of states in dirty superconducting films — •Matthias Stosiek — Sophia University, Physics Division, Tokyo, Japan

Mesoscopic fluctuations of the local density of states encode multifractal correlations in disordered electron systems. We study fluctuations of the local density of states in a superconducting state of weakly disordered films. We perform numerical computations in the framework of the disordered attractive Hubbard model on two-dimensional square lattices. Interactions are taken into account within mean-field approximation. Our numerical results are explained by an analytical theory. The numerical data and the theory together form a coherent picture of multifractal correlations of the local density of states in weakly disordered superconducting films. [1]
[1] M. Stosiek, F. Evers, I. S. Burmistrov, arXiv:2107.06728 (2021)