Higher Order Hybrid Monte Carlo at Finite Temperature

Details Higher Order Hybrid Monte Carlo at Finite Temperature Higher Order Hybrid Monte Carlo at Finite Temperature

2002-03-23

arxiv.org/abs/hep-lat/0203024v2

Phys.Lett. B540 (2002) 159-165

Physics

High Energy Physics

High Energy Physics - Lattice

13 pages, 6 figures

Scientific paper

10.1016/S0370-2693(02)02139-1

The standard hybrid Monte Carlo algorithm uses the second order integrator at the molecular dynamics step. This choice of the integrator is not always the best. Using the Wilson fermion action, we study the performance of the hybrid Monte Carlo algorithm for lattice QCD with higher order integrators in both zero and finite temperature phases and find that in the finite temperature phase the performance of the algorithm can be raised by use of the 4th order integrator.

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