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

TL;DR

This paper explores the application of the maximum entropy method to address the sign problem in lattice field theory, aiming to improve non-perturbative studies of theories like finite density QCD.

Contribution

It proposes a novel approach using the maximum entropy method to mitigate the sign problem in lattice field theory simulations.

Findings

Demonstrates potential of maximum entropy method in alleviating the sign problem

Provides a new perspective on non-perturbative lattice calculations

Suggests improved computational strategies for theories with a sign problem

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.