Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)


SIGMA 3 (2007), 018, 7 pages      hep-lat/0702016      http://dx.doi.org/10.3842/SIGMA.2007.018
Contribution to the Proceedings of the O'Raifeartaigh Symposium

Lattice Field Theory with the Sign Problem and the Maximum Entropy Method

Masahiro Imachi a, Yasuhiko Shinno b and Hiroshi Yoneyama c
a) Kashiidai, Higashi-ku, Fukuoka, 813-0014, Japan
b) Takamatsu National College of Technology, Takamatsu 761-8058, Japan
c) Department of Physics, Saga University, Saga, 840-8502, Japan

Received September 30, 2006, in final form January 19, 2007; Published online February 05, 2007

Abstract
Although numerical simulation in lattice field theory is one of the most effective tools to study non-perturbative properties of field theories, it faces serious obstacles coming from the sign problem in some theories such as finite density QCD and lattice field theory with the θ term. We reconsider this problem from the point of view of the maximum entropy method.

Key words: lattice field theory; sign problem; maximum entropy method.

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