The Fermion Sign Problem and High Density Effective Theory
High Energy Physics - Phenomenology
2017-08-23 v1 High Energy Physics - Lattice
High Energy Physics - Theory
Nuclear Theory
Abstract
We investigate the positivity of the Euclidean path integral measure for low-energy modes in dense fermionic matter. We show that the sign problem usually associated with fermions is absent if one considers only low-energy degrees of freedom. We describe a method for simulating dense QCD on the lattice and give a proof using rigorous inequalities that the color-flavor locked (CFL) phase is the true vacuum of three flavor, massless QCD.
Cite
@article{arxiv.hep-ph/0402002,
title = {The Fermion Sign Problem and High Density Effective Theory},
author = {D. K. Hong and S. D. H. Hsu},
journal= {arXiv preprint arXiv:hep-ph/0402002},
year = {2017}
}
Comments
Contribution to proceedings of KIAS-APCTP Symposium on Astro-Hadron Physics, published by World Scientific. Based on talk by S. Hsu