We revisit one of the first quantum Monte Carlo methods using a combination of the Suzuki–Trotter transformation and Taylor series expansion for the XYZ Heisenberg chain S=1/2 with a magnetic field along the z-axis. We show a substantial gain in accuracy and computational time. This combination is especially useful for small magnetic fields and lower temperatures.
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- quantum Monte Carlo method
- anisotropic Heisenberg chain
- Suzuki–Trotter transformation
Androvitsaneas, P., Fytas, N. G., Paspalakis, E., & Terzis, A. F. (2012). Quantum Monte Carlo simulations revisited: The case of anisotropic Heisenberg chains. Philosophical Magazine, 92(36), 4649-4656. https://doi.org/10.1080/14786435.2012.716200