Testing and tuning symplectic integrators for the hybrid Monte Carlo algorithm in lattice QCD
Testing and tuning symplectic integrators for the hybrid Monte Carlo algorithm in lattice QCD
We examine a new second-order integrator recently found by Omelyan et al. The integration error of the new integrator measured in the root mean square of the energy difference, <DeltaH2>1/2, is about 10 times smaller than that of the standard second-order leapfrog (2LF) integrator. As a result, the step size …