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Loop Algorithms for Asymmetric Hamiltonians

Olav F. Syljuasen
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Abstract

Generalized rules for building and flipping clusters in the quantum Monte Carlo loop algorithm are presented for the XXZ-model in a uniform magnetic field along the Z-axis. As is demonstrated for the Heisenberg antiferromagnet it is possible from these rules to select a new algorithm which performs significantly better than the standard loop algorithm in strong magnetic fields at low temperatures.

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Olav F. Syljuasen. 2000-01-28. Loop Algorithms for Asymmetric Hamiltonians. https://doi.org/10.1103/physrevb.61.r846

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