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

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 $\theta$ term. We reconsider this problem from the point of view of the maximum entropy method.

This is a contribution to the Proc. of the O'Raifeartaigh Symposium on Non-Perturbative and Symmetry Methods in Field Theory (June 2006, Budapest, Hungary), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/

References in corpus (6)

• Maximum Entropy Analysis of the Spectral Functions in Lattice QCD
• CP(N-1) Models with Theta Term and Fixed Point Action
• Monte Carlo Studies of Two-Dimensional Systems with a $\theta$ Term
• Two dimensional CP^2 Model with θ-term and Topological Charge Distributions
• Maximum Entropy Method Approach to $\theta$ Term
• Sign problem and MEM in lattice field theory with the $\theta$ term