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Physical Review E

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  1. Effect of network structure on phase transitions in queuing networks.

    Physical Review E 86(6 Pt 2):066111 (2012) PMID 23368008

    We also study phase transition in transportation networks using a discrete time random walk model. Our aim is to establish a direct connection between the structure of an uncorrelated random graph with quenched disorder and the value of the critical traffic load. We show that if the network is dense...
  2. Scaling behavior of the earthquake intertime distribution: influence of large shocks and time scales in the Omori law.

    Physical Review E 86(6 Pt 2):066119 (2012) PMID 23368016

    We present a study of the earthquake intertime distribution D(Δt) for a California catalog in temporal periods of short duration T. We compare experimental results with theoretical predictions and analytical approximate solutions. For the majority of intervals, rescaling intertimes by the average ra...
  3. Nonsymmetric laser-pulse propagation in capillary tubes with variable radius.

    Physical Review E 86(6 Pt 2):066411 (2012) PMID 23368063

    A model describing the nonsymmetrical laser-pulse propagation in capillary tubes with inner radius smoothly varying with the capillary length is proposed. Using this model, the use of capillaries with specially profiled entrance sections (particularly cone matching elements) for improving the coupli...
  4. Direct molecular dynamics simulation of liquid-solid phase equilibria for a three-component plasma.

    Physical Review E 86(6 Pt 2):066413 (2012) PMID 23368065

    We perform molecular dynamics simulations to determine the influence of ²²Ne in carbon-oxygen-neon systems on liquid-solid phase equilibria. Both liquid and solid phases are present simultaneously in our simulation volumes. We identify liquid, solid, and interface regions in our simulations using a...
  5. Rotation algorithm: generation of Gaussian self-similar stochastic processes.

    Physical Review E 86(6 Pt 2):066704 (2012) PMID 23368075

    We introduce a simple and practical method to generate Gaussian self-similar stochastic processes [fractional Gaussian noises (fGns) and fractional Brownian motions (fBms)] by interpolating between two known series of them. We apply the rotation algorithm to different cases including different pairs...
  6. Out-of-equilibrium relaxation of the thermal Casimir effect in a model polarizable material.

    Physical Review E 85(3 Pt 1):031108 (2012) PMID 22587039

    We start with a model of interacting polarization fields with a dynamics that leads to a frequency dependent dielectric constant of the Debye form. In the static limit, the usual zero frequency Matsubara mode component of the Casimir force is recovered. We then consider the out-of-equilibrium relaxa...
  7. Lower and upper bounds on the fidelity susceptibility.

    Physical Review E 85(3 Pt 1):031115 (2012) PMID 22587046

    We derive upper and lower bounds on the fidelity susceptibility in terms of macroscopic thermodynamical quantities, such as the susceptibilities and thermal average values. The quality of the bounds is checked against the exact expressions for a single spin in an external magnetic field. Their usefu...
  8. Ringlike spin segregation of binary mixtures in a high-velocity rotating drum.

    Physical Review E 85(3 Pt 1):031305 (2012) PMID 22587090

    This study presents molecular dynamics simulations on the segregation of binary mixtures in a high-velocity rotating drum. Depending on the ratio between the particle radius and density, similarities to the Brazil-nut effect and its reverse form are shown in the ringlike spin segrega...
  9. Recurrent inflation and collapse in horizontally shaken granular materials.

    Physical Review E 85(3 Pt 1):031307 (2012) PMID 22587092

    We report a striking effect observed experimentally in several granular materials when shaken horizontally: The material displays a recurrent alternation between a slow inflation phase, characterized by an increase in its volume, and a fast collapse phase, when the volume abruptly returns to its ori...
  10. Temperature dependence of the structure of protein hydration water and the liquid-liquid transition.

    Physical Review E 85(3 Pt 1):031503 (2012) PMID 22587099

    We study the temperature dependence of the structure and orientation of the first hydration layers of the protein lysozyme and compare it with the situation for a model homogeneous hydrophobic surface, a graphene sheet. We show that in both cases these layers are significantly better structured than...