We introduce a method based on the hybrid Monte Carlo (HMC) algorithm [S. Duane, A. D. Kennedy, B. J. Pendleton, and D. Roweth, Phys. Lett. B 195, 216 (1987)] to sample the canonical distribution in systems with a conserved order parameter. We show that the standard HMC method and the one introduced here are special cases of a general class of HMC methods. As an application we compute the scaling function of the interface excess energy for the ${\mathrm{\phi }}^4$ model.

• Received 18 November 1992

DOI:https://doi.org/10.1103/PhysRevE.47.R3848