Noise, sign problems, and statistics
High Energy Physics - Lattice
2013-03-01 v1 Mesoscale and Nanoscale Physics
Nuclear Theory
Abstract
We show how sign problems in simulations of many-body systems can manifest themselves in the form of heavy-tailed correlator distributions, similar to what is seen in electron propagation through disordered media. We propose an alternative statistical approach for extracting ground state energies in such systems, illustrating the method with a toy model and with lattice data for unitary fermions.
Cite
@article{arxiv.1106.0073,
title = {Noise, sign problems, and statistics},
author = {Michael G. Endres and David B. Kaplan and Jong-Wan Lee and Amy N. Nicholson},
journal= {arXiv preprint arXiv:1106.0073},
year = {2013}
}
Comments
4 pages, 4 figures