LANGEVIN METHODS FOR SU(N) CHIRAL MODELS IN TWO DIMENSIONS

R.R. Horgan and I.T. Drummond
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R.R. Horgan: DAMTP, University of Cambridge, Silver Street, Cambridge CB3 9EW, England
I.T. Drummond: DAMTP, University of Cambridge, Silver Street, Cambridge CB3 9EW, England

International Journal of Modern Physics C (IJMPC), 1994, vol. 05, issue 02, 367-369

Abstract: We apply improved Langevin methods with Fourier acceleration toSU(N)×SU(N)/SU(N)spin models in two dimensions forN=3, 4 & 6. We discuss the effect of fourier acceleration and operator improvement techniques, measure the fundamental correlation length on lattices upto1282and observe asymptotic scaling in a physical scheme. Bound state masses are also measured and evidence is found for excited states in all channels. Our results are found to be in good agreement with theory.

Date: 1994
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DOI: 10.1142/S0129183194000519

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