Suppression of the negative sign problem in quantum Monte Carlo

Details Suppression of the negative sign problem in quantum Monte Carlo Suppression of the negative sign problem in quantum Monte Carlo

1996-05-22

arxiv.org/abs/hep-lat/9605026v1

Physics

High Energy Physics

High Energy Physics - Lattice

19 pages, Latex

Scientific paper

We present a new Monte Carlo algorithm for simulating quantum spin systems which is able to suppress the negative sign problem. This algorithm has only a linear complexity in the lattice size used for the simulation. A general description and a rigorous proof of its correctness is given. Its efficiency is tested on a simple 2-dimensional fermionic model. For this model we show that our algorithm eliminates the sign problem.

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