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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_0Distribution format: gz | ||

Journal reference: Comput. Phys. Commun. 70(1992)510 | ||

Programming language: Fortran. | ||

Computer: DEC-STATION 5000. | ||

Operating system: ULTRIX. | ||

RAM: 400K words | ||

Peripherals: disc. | ||

Keywords: Statistical physics, Thermodynamics, Random surfaces, Dynamical triangulation, Potts(ising) model, Cluster and loop update, Dual lattice. | ||

Classification: 23. | ||

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. | ||

Solution method: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. | ||

Running time: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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