| Issue |
Europhys. Lett.
Volume 74, Number 2, April 2006
|
|
|---|---|---|
| Page(s) | 195 - 201 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2006-10007-y | |
| 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
Received:
20
January
2005
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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