Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Arenzon, J. J."'
Autor:
Canova, Gabriel A., Arenzon, J. J.
When the interactions between cooperators (C) and defectors (D) can be partially avoided within a population, there may be an overall enhancement of cooperation. One example of such screening mechanism occurs in the presence of risk-averse agents (lo
Externí odkaz:
http://arxiv.org/abs/1708.06844
We present a rigorous proof and extensive numerical simulations showing the existence of a transition between the paramagnetic and nematic phases, in a class of generalized XY models. This confirms the topology of the phase diagram calculated by Pode
Externí odkaz:
http://arxiv.org/abs/1207.3447
Autor:
Arenzon, J. J., Sellitto, M.
Publikováno v:
Eur. Phys. J. B 42, 543-548 (2004)
We investigate the Kovacs (or crossover) effect in facilitated $f$-spin models of glassy dynamics. Although the Kovacs hump shows a behavior qualitatively similar for all cases we have examined (irrespective of the facilitation parameter $f$ and the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408405
Publikováno v:
Physica A 340 (2004) 316-326
A comparative study of the dynamics of inherent structures at low temperatures is performed on different models of glass formers: a three dimensional Lennard-Jones binary mixture (LJBM), facilitated spin models (either symmetrically constrained, SCIC
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401435
Publikováno v:
Phys. Rev. Lett. 86 (2001) 4717
In a Comment (cond-mat/0103444) on our recent paper "Two time scales and violation of FDT in a finite dimensional model for structural glasses" [1], A. de Candia and A. Coniglio show evidence that the equilibrium overlap distribution P(q) of the frus
Externí odkaz:
http://arxiv.org/abs/cond-mat/0103450
Publikováno v:
Europhys. Lett. 55, 767 (2001).
We present an analytical approach to the out of equilibrium dynamics of a class of kinetic lattice gases under gravity. The location of the jamming transition, the critical exponents, and the scaling functions characterizing the relaxation processes
Externí odkaz:
http://arxiv.org/abs/cond-mat/0012041
Publikováno v:
Phys. Rev. E 62, 5978 (2000)
The dynamical properties of a three dimensional model glass, the frustrated Ising lattice gas (FILG) are studied by Monte Carlo simulations. We present results of compression experiments, where the chemical potential is either slowly or abruptly chan
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009338
Autor:
Sellitto, M., Arenzon, J. J.
Publikováno v:
Phys. Rev. E 62, 7793 (2000).
We show that the main dynamical features of granular media can be understood by means of simple models of fragile-glass forming liquid provided that gravity alone is taken into account. In such lattice-gas models of cohesionless and frictionless part
Externí odkaz:
http://arxiv.org/abs/cond-mat/0006146
Publikováno v:
J. Stat. Phys 79 (1995) 415
The dynamics of an extremely diluted neural network with high order synapses acting as corrections to the Hopfield model is investigated. As in the fully connected case, the high order terms may strongly improve the storage capacity of the system. Th
Externí odkaz:
http://arxiv.org/abs/cond-mat/9401003
Autor:
Arenzon, J. J., de Almeida, R. M. C.
Publikováno v:
Phys. Rev. E 47 (1993) 4060
We present results for two different kinds of high order connections between neurons acting as corrections to the Hopfield model. Equilibrium properties are analyzed using the replica mean-field theory and compared with numerical simulations. An opti
Externí odkaz:
http://arxiv.org/abs/cond-mat/9306039