Tackling the Sign Problem

Abstract

To tackle the sign problem in the simulations of systems having indefinite or complex-valued measures, we propose a new approach which yields statistical errors smaller than the crude Monte Carlo using absolute values of the original measures. The 1D complex-coupling Ising model is employed as an illustration.

Comments: 3 pages, postscript (68K), contribution to IMACS93, UM-P-93/109