Monte Carlo Simulation on Aging Phenomena in the SK Spin-Glass Model: Temperature Dependence of the Time Evolution of Energy

Author(s):  
H. Takayama ◽  
H. Yoshino ◽  
K. Hukushima
1992 ◽  
Vol 03 (06) ◽  
pp. 1251-1274 ◽  
Author(s):  
BERND A. BERG ◽  
TARIK CELIK

We report a Monte Carlo simulation of the 2D Edwards-Anderson spin glass model within the recently introduced multicanonical ensemble. Replica on lattices of size L2 up to L=48 are investigated. Once a true groundstate is found, we are able to give a lower bound on the number of statistically independent groundstates sampled. Temperature dependence of the energy, entropy and other quantities of interest are easily calculable. In particular we report the groundstate results. Our data indicate that the large L increase of the ergodicity time is reduced to an approximately V3 power law. Altogether the results suggest that the multicanonical ensemble improves the situation of simulations for spin glasses and other systems which have to cope with similar problems of conflicting constraints.


1996 ◽  
Vol 34 (3) ◽  
pp. 159-164 ◽  
Author(s):  
L. L Bonilla ◽  
F. G Padilla ◽  
G Parisi ◽  
F Ritort

1996 ◽  
Vol 455 ◽  
Author(s):  
S. C. Glotzer ◽  
P. H. Poole ◽  
A. Coniglio ◽  
N. Jan

ABSTRACTThe temperature dependence of the microstructure and local dynamics in the paramagnetic phase of the d = 2 and d = 3 ± J Ising spin glass model is examined by comparing the equilibrium distributions of local flip-rates and local energies calculated in large-scale Monte Carlo simulations. The emergence in this model of fast processes as the glass transition is approached corresponds with recent experimental results.


2012 ◽  
Vol 184 ◽  
pp. 387-392 ◽  
Author(s):  
L.V. Elnikova

X-ray and mechanical spectroscopy on liquid-crystalline elastomers give evidence of rubber elasticity, which depends upon the crosslink concentration. After applied macroscopic deformations, mesoscale non-affine deformations in these systems might lead to long relaxation times. Basing on the example of the crosslink-dependent smectic A − nematic (SmA−N) transition in polysiloxanes, we propose to use the three-dimensional Villain spin glass model and reduce it to the lattice version of the three-dimensionalXYspin-glass model. By using the Monte Carlo loop algorithm in this model, we found a percolation threshold depending on the crosslink concentration.


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