Volume 74, Number 2, April 2006
|Page(s)||195 - 201|
|Published online||24 March 2006|
Free-energy barriers in the Sherrington-Kirkpatrick model
Institut für Theoretische Physik and Centre for Theoretical Sciences (NTZ) Universität Leipzig - Augustusplatz 10/11, D-04109 Leipzig, Germany
Accepted: 27 February 2006
The Sherrington-Kirkpatrick spin-glass model is investigated by means of Monte Carlo simulations by employing a combination of the multi-overlap algorithm with parallel tempering methods. We investigate the finite-size scaling behaviour of the free-energy barriers which are visible in the probability density of the Parisi overlap parameter. Assuming that the mean barrier height diverges with the number of spins N as , our data show good agreement with the theoretical value .
PACS: 02.70.Uu – Applications of Monte Carlo methods / 75.10.Nr – Spin-glass and other random models
© EDP Sciences, 2006
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