201 citations · 1.3k across the 82 of their papers we have counts for
83 papers
Elliptic Calogero-Sutherland model and conformal field theory
Edwin Langmann
In a project with Gordon Semenoff on 1+1 dimensional QCD many years ago (when he was my postdoc advisor), we stumbled over a method to solve Calogero-Moser-Sutherland models using…
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…
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…
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…
Partial continuum limit of the 2D Hubbard model
Jonas de Woul, Edwin Langmann
An effective quantum field theory of the 2D Hubbard model on a square lattice near half-filling is presented and studied. This effective model describes so-called nodal and antinod…
Universal and nonuniversal features of Bardeen-Cooper-Schrieffer theory with finite-range interactions
Edwin Langmann, Christopher Triola
We study analytic solutions to the Bardeen-Cooper-Schrieffer (BCS) gap equation for isotropic superconductors with finite-range interaction potentials over the full range of temper…