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JHEP09(2008)018 Published by Institute of Physics Publishing for SISSA

Summary: JHEP09(2008)018
Published by Institute of Physics Publishing for SISSA
Received: July 31, 2008
Accepted: August 22, 2008
Published: September 3, 2008
Stochastic quantization at finite chemical potential
Gert Aarts
Department of Physics, Swansea University,
Swansea, United Kingdom
E-mail: g.aarts@swan.ac.uk
Ion-Olimpiu Stamatescu
Institut f¨ur Theoretische Physik, Universit¨at Heidelberg,
Heidelberg, Germany, and
FEST, Heidelberg, Germany
E-mail: I.O.Stamatescu@thphys.uni-heidelberg.de
Abstract: A nonperturbative lattice study of QCD at finite chemical potential is compli-
cated due to the complex fermion determinant and the sign problem. Here we apply the
method of stochastic quantization and complex Langevin dynamics to this problem. We
present results for U(1) and SU(3) one link models and QCD at finite chemical potential
using the hopping expansion. The phase of the determinant is studied in detail. Even


Source: Aarts, Gert - Department of Physics, University of Wales Swansea


Collections: Physics