@article{14542,
abstract = {It is a remarkable property of BCS theory that the ratio of the energy gap at zero temperature Ξ
and the critical temperature Tc is (approximately) given by a universal constant, independent of the microscopic details of the fermionic interaction. This universality has rigorously been proven quite recently in three spatial dimensions and three different limiting regimes: weak coupling, low density and high density. The goal of this short note is to extend the universal behavior to lower dimensions d=1,2 and give an exemplary proof in the weak coupling limit.},
author = {Henheik, Sven Joscha and Lauritsen, Asbjørn Bækgaard and Roos, Barbara},
issn = {1793-6659},
journal = {Reviews in Mathematical Physics},
publisher = {World Scientific Publishing},
title = {{Universality in low-dimensional BCS theory}},
doi = {10.1142/s0129055x2360005x},
year = {2023},
}