Ginzburg-Landau Expansion in a Toy Model of Superconductor with Pseudogap
A.I.Posazhennikova, M.V.Sadovskii
TL;DR
This paper introduces a simplified model of a 2D superconductor with pseudogap effects, deriving Ginzburg-Landau theory to study how pseudogap influences superconducting properties.
Contribution
It presents a novel toy model capturing pseudogap effects and derives Ginzburg-Landau expansion for s-wave and d-wave pairing within this framework.
Findings
Pseudogap significantly renormalizes spectral density.
Pseudogap impacts the critical temperature and coherence length.
Superconducting properties are altered by pseudogap formation.
Abstract
We propose a toy model of electronic spectrum of two-dimensional system with ``hot-patches'' on the Fermi surface, which leads to essential renormalization of spectral density (pseudogap). Within this model we derive Ginzburg-Landau expansion for both s-wave and d-wave Cooper pairing and analyze the influence of pseudogap formation on the basic properties of superconductors.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.