Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2002-07-30
J. Phys. A 35 (2002) 8171
Physics
Condensed Matter
Disordered Systems and Neural Networks
9 pages, 7 figures; Note added
Scientific paper
10.1088/0305-4470/35/39/303
We study the two-dimensional +/-J Ising model, three-state Potts model and four-state Potts model, by the numerical transfer matrix method to investigate the behaviour of the sample-to-sample fluctuations of the internal energy on the Nishimori line. The result shows a maximum at the multicritical point in all the models we investigated. The large sample-to-sample fluctuations of the internal energy as well as the existence of a singularity in these fluctuations imply that the bond configuration (or, equivalently, the distribution of frustrated plaquettes) may be experiencing a non-trivial change of its behaviour at the multicritical point. This observation is consistent with the picture that the phase transition at the multicritical point is of geometry-induced nature.
Falvo Cyril
Nishimori Hidetoshi
Ozeki Yukiyasu
No associations
LandOfFree
Energy fluctuations at the multicritical point in two-dimensional spin glasses does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Energy fluctuations at the multicritical point in two-dimensional spin glasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy fluctuations at the multicritical point in two-dimensional spin glasses will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-356805