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arXiv · hep-lat/9311072

Monte Carlo Simulations with Indefinite and Complex-Valued Measures

T D Kieu·C J Griffin
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Abstract

A method is presented to tackle the sign problem in the simulations of systems having indefinite or complex-valued measures. In general, this new approach is shown to yield statistical errors smaller than the crude Monte Carlo using absolute values of the original measures. Exactly solvable, one-dimensional Ising models with complex temperature and complex activity illustrate the considerable improvements and the workability of the new method even when the crude one fails.

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T D Kieu, C J Griffin. 1993-12-01. Monte Carlo Simulations with Indefinite and Complex-Valued Measures. https://doi.org/10.1103/physreve.49.3855

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