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Simulation of large deviation functions using population dynamics

Autor: Tailleur, J., Lecomte, V.

Publikováno v: AIP Conf. Proc, Vol 1091, pp. 212-219 (2009) MODELING AND SIMULATION OF NEW MATERIALS: Proceedings of Modeling and Simulation of New Materials: Tenth Granada Lectures

In these notes we present a pedagogical account of the population dynamics methods recently introduced to simulate large deviation functions of dynamical observables in and out of equilibrium. After a brief introduction on large deviation functions a

Externí odkaz: http://arxiv.org/abs/0811.1041

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First-order dynamical phase transition in models of glasses: an approach based on ensembles of histories

Autor: Garrahan, J. P., Jack, R. L., Lecomte, V., Pitard, E., van Duijvendijk, K., van Wijland, F.

Publikováno v: J. Phys. A 42, 075007 (2009)

We investigate the dynamics of kinetically constrained models of glass formers by analysing the statistics of trajectories of the dynamics, or histories, using large deviation function methods. We show that, in general, these models exhibit a first-o

Externí odkaz: http://arxiv.org/abs/0810.5298

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Long range correlations and phase transition in non-equilibrium diffusive systems

Autor: Bodineau, T., Derrida, B., Lecomte, V., van Wijland, F.

Publikováno v: J. Stat. Phys. 133 1013 (2008)

We obtain explicit expressions for the long range correlations in the ABC model and in diffusive models conditioned to produce an atypical current of particles.In both cases, the two-point correlation functions allow to detect the occurrence of a pha

Externí odkaz: http://arxiv.org/abs/0807.2394

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Interaction Ruling Animal Collective Behaviour Depends on Topological rather than Metric Distance: Evidence from a Field Study

Autor: Ballerini, M., Cabibbo, N., Candelier, R., Cavagna, A., Cisbani, E., Giardina, I., Lecomte, V., Orlandi, A., Parisi, G., Procaccini, A., Viale, M., Zdravkovic, V.

Publikováno v: PNAS, 105, 1232-1237 (2008)

Numerical models indicate that collective animal behaviour may emerge from simple local rules of interaction among the individuals. However, very little is known about the nature of such interaction, so that models and theories mostly rely on apriori

Externí odkaz: http://arxiv.org/abs/0709.1916

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Dynamic first-order phase transition in kinetically constrained models of glasses

Autor: Garrahan, J. P., Jack, R. L., Lecomte, V., Pitard, E., van Duijvendijk, K., van Wijland, F.

Publikováno v: Phys. Rev. Lett. 98, 195702 (2007)

We show that the dynamics of kinetically constrained models of glass formers takes place at a first-order coexistence line between active and inactive dynamical phases. We prove this by computing the large-deviation functions of suitable space-time o

Externí odkaz: http://arxiv.org/abs/cond-mat/0701757

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Quasi-equilibrium during aging of the 2D Edwards-Anderson model

Autor: Franz, S., Lecomte, V., Mulet, R.

Publikováno v: Phys. Rev. E 68 066128 (2003)

We test the quasi-equilibrium picture of the aging dynamics -strictly valid in the asymptotic dynamical regime of aging systems- in the pre-asymptotic aging regime of the two dimensional Edwards-Anderson spin glass model. We compare the fluctuation-d

Externí odkaz: http://arxiv.org/abs/cond-mat/0309194

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