A Diagrammer's Note on Superconducting Fluctuation Transport for Beginners: I. Conductivity and Thermopower
Osamu Narikiyo
TL;DR
This paper reviews a diagrammatic approach to superconducting fluctuation transport, focusing on conductivity and thermopower, ensuring consistency with Ginzburg-Landau theory and clarifying heat current vertices for Cooper pairs.
Contribution
It introduces a consistent diagrammatic method for superconducting fluctuation transport, emphasizing the heat current vertex and its relation to established theories.
Findings
Clarified the heat current vertex for Cooper pairs using Jonson-Mahan formula
Ensured consistency with Ginzburg-Landau theory in fluctuation transport
Reviewed diagrammatic approach for conductivity and thermopower
Abstract
A diagrammatic approach based on thermal Green function to superconducting fluctuation transport is reviewed keeping consistency with Ginzburg-Landau theory. The correct expression of the heat current vertex for Cooper pairs is clarified via Jonson-Mahan formula and Ward identities.
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Advanced Thermodynamics and Statistical Mechanics · Advanced Physical and Chemical Molecular Interactions