201 citations · 1.3k across the 82 of their papers we have counts for
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math-ph2024
Multi-band superconductors have enhanced critical temperatures
Joscha Henheik, Edwin Langmann, Asbjørn Bækgaard Lauritsen
We introduce a multi-band BCS free energy functional and prove that for a multi-band superconductor the effect of inter-band coupling can only increase the critical temperature, ir…
math-ph2024
Elliptic Integrable Systems and Special Functions
Martin Hallnäs, Edwin Langmann
We discuss elliptic quantum Calogero-Moser-Sutherland models, including their relativistic generalizations due to Ruijsenaars and van Diejen, and the relations of these models to c…
cond-mat.str-el2024★ 2 cited
Higher bracket structure of density operators in Weyl fermion systems and topological insulators
Edwin Langmann, Shinsei Ryu, Ken Shiozaki
We study the algebraic structure of electron density operators in gapless Weyl fermion systems in spatial dimensions and in topological insulators (without any pro…