11 citations · 21 across the 2 of their papers we have counts for
2 papers
math-ph2008★ 10 cited
Hyperbolic Hubbard-Stratonovich transformation made rigorous
Y. V. Fyodorov, Y. Wei, M. R. Zirnbauer
We revisit a long standing issue in the theory of disordered electron systems and their effective description by a non-linear sigma model: the hyperbolic Hubbard-Stratonovich (HS)…
math-ph2008★ 11 cited
Character expansion method for supergroups and extended superversions of the Leutwyler-Smilga and Berezin-Karpelevich integrals
C. Lehner, T. Wettig, T. Guhr +1
We introduce an extension of the character expansion method to the case of supergroups. This method allows us to calculate a superversion of the Leutwyler-Smilga integral which, to…