Monte Carlo Simulations with Complex-Valued Measure

Details Monte Carlo Simulations with Complex-Valued Measure Monte Carlo Simulations with Complex-Valued Measure

1997-10-20

arxiv.org/abs/hep-lat/9710067v1

Nucl.Phys.Proc.Suppl. 63 (1998) 970-972

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 3 Postscript figures, submitted to Nucl.Phys.B.Proc.Supp

Scientific paper

10.1016/S0920-5632(97)00958-4

A simulation method based on the RG blocking is shown to yield statistical errors smaller than that of the crude MC using absolute values of the original measures. The new method is particularly suitable to apply to the sign problem of indefinite or complex-valued measures. We demonstrate the many advantages of this method in the simulation of 2D Ising model with complex-valued temperature.

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