Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] achs_v1_0.gz(5 Kbytes)|
|Manuscript Title: Swendsen-Wang dynamics for Potts model on a dynamically triangulated random surface.|
|Authors: Z. Burda, J. Jurkiewicz, L. Karkkainen|
|Program title: LOOPS|
|Catalogue identifier: ACHS_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 70(1992)510|
|Programming language: Fortran.|
|Computer: DEC-STATION 5000.|
|Operating system: ULTRIX.|
|RAM: 400K words|
|Keywords: Statistical physics, Thermodynamics, Random surfaces, Dynamical triangulation, Potts(ising) model, Cluster and loop update, Dual lattice.|
Nature of problem:
The potts model on dynamically triangulated random surfaces as a regularization of a quantum model of unitary matter coupled to two- dimensional gravity.
The program uses a standard dynamical Monte-Carlo scheme to produce configurations distributed according to the Gibbs measure of the Potts model. To update the domain-walls of a Potts configuration as well as the lattice geometry the algorithm uses in turns the Swendsen-Wang dynamics and a certain number of local flip operations governed by the Metropolis probability. For triangulations with a fixed number of points, values of the action are measured and put into a file for further analysis.
The time required for a trial flip and a Swendsen-Wang update calculated per link on the lattice is 19 mu seconds.
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