Unconventional superconductivity from weak coupling
Please always quote using this URN: urn:nbn:de:bvb:20-opus-325153
- We develop a joint formalism and numerical framework for analyzing the superconducting instability of metals from a weak coupling perspective. This encompasses the Kohn–Luttinger formulation of weak coupling renormalization group for superconductivity as well as the random phase approximation imposed on the diagrammatic expansion of the two-particle Green’s function. The central quantity to resolve is the effective interaction in the Cooper channel, for which we develop an optimized numerical framework. Our code is capable of treating genericWe develop a joint formalism and numerical framework for analyzing the superconducting instability of metals from a weak coupling perspective. This encompasses the Kohn–Luttinger formulation of weak coupling renormalization group for superconductivity as well as the random phase approximation imposed on the diagrammatic expansion of the two-particle Green’s function. The central quantity to resolve is the effective interaction in the Cooper channel, for which we develop an optimized numerical framework. Our code is capable of treating generic multi-orbital models in two as well as three spatial dimensions and, in particular, arbitrary avenues of spin-orbit coupling.…
Author: | Matteo DürrnagelORCiD, Jacob BeyerORCiD, Ronny ThomaleORCiD, Tilman SchwemmerORCiD |
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URN: | urn:nbn:de:bvb:20-opus-325153 |
Document Type: | Journal article |
Faculties: | Fakultät für Physik und Astronomie / Institut für Theoretische Physik und Astrophysik |
Language: | English |
Parent Title (English): | The European Physical Journal B |
ISSN: | 1434-6028 |
Year of Completion: | 2022 |
Volume: | 95 |
Issue: | 7 |
Article Number: | 112 |
Source: | The European Physical Journal B (2022) 95:7, 112. DOI: 10.1140/epjb/s10051-022-00371-4 |
DOI: | https://doi.org/10.1140/epjb/s10051-022-00371-4 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Tag: | metals; superconducting instability; unconventional superconductivity; weak coupling |
Release Date: | 2024/03/11 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |