Title:
|
Phase transitions in the Potts spin-glass model
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Author:
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Franzese, Giancarlo; Coniglio, Antonio, 1940-
|
Other authors:
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Universitat de Barcelona |
Abstract:
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We have studied the Potts spin glass with two-state Ising spins and
s
-state Potts variables using a cluster Monte Carlo dynamics. The model recovers the
±
J
Ising spin glass (SG) for
s
=
1
and exhibits for all
s
a SG transition at
T
SG
(
s
)
and a percolation transition at higher temperature
T
p
(
s
)
.
We have shown that for all values of
s
≠
1
at
T
p
(
s
)
there is a thermodynamic transition in the universality class of a ferromagnetic
s
-state Potts model. The efficiency of the cluster dynamics is compared with that of standard spin-flip dynamics. |
Subject(s):
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-Model d'Ising -Transformacions de fase (Física estadística) -Mecànica estadística -Ising model -Phase transformations (Statistical physics) -Statistical mechanics |
Rights:
|
(c) American Physical Society, 1998
|
Document type:
|
Article Article - Published version |
Published by:
|
The American Physical Society
|
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|
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