68 citations · 631 across the 28 of their papers we have counts for
28 papers
On the emergence of large and complex memory effects in nonequilibrium fluids
Antonio Lasanta, Francisco Vega Reyes, Antonio Prados +1
Control of cooling and heating processes is essential in many industrial and biological processes. In fact, the time evolution of an observable quantity may differ according to the…
Lattice models for granular-like velocity fields: Finite-size effects
C. A. Plata, A. Manacorda, A. Lasanta +2
Long-range spatial correlations in the velocity and energy fields of a granular fluid are discussed in the framework of a 1d lattice model. The dynamics of the velocity field occur…
Statistics of the dissipated energy in driven diffusive systems
A. Lasanta, Pablo I. Hurtado, A. Prados
Understanding the physics of non-equilibrium systems remains as one of the major open questions in statistical physics. This problem can be partially handled by investigating macro…
Fluctuating hydrodynamics and mesoscopic effects of spatial correlations in dissipative systems with conserved momentum
A. Lasanta, A. Manacorda, A. Prados +1
We introduce a model described in terms of a scalar velocity field on a 1d lattice, evolving through collisions that conserve momentum but do not conserve energy. Such a system pos…
Ripples in hexagonal lattices of atoms coupled to Glauber spins
M Ruiz-Garcia, L L Bonilla, A Prados
A system of atoms connected by harmonic springs to their nearest neighbors on a lattice is coupled to Ising spins that are in contact with a thermal bath and evolve under Glauber d…
Theory of force-extension curve for modular proteins and DNA hairpins
L. L. Bonilla, A. Carpio, A. Prados
We study a model describing the force-extension curves of modular proteins, nucleic acids, and other biomolecules made out of several single units or modules. At a mesoscopic level…
Protein unfolding and refolding as transitions through virtual states
L. L. Bonilla, A. Carpio, A. Prados
Single-molecule atomic force spectroscopy probes elastic properties of titin, ubiquitin and other relevant proteins. We explain bioprotein folding dynamics under both length- and f…
Memory effect in uniformly heated granular gases
E. Trizac, A. Prados
We evidence a Kovacs-like memory effect in a uniformly driven granular gas. A system of inelastic hard particles, in the low density limit, can reach a non-equilibrium steady state…
Kovacs-like memory effect in driven granular gases
A. Prados, E. Trizac
While memory effects have been reported for dense enough disordered systems such as glasses, we show here by a combination of analytical and simulation techniques that they are als…
The Kovacs effect in the one-dimensional Ising model: a linear response analysis
M. Ruiz-García, A. Prados
We analyze the so-called Kovacs effect in the one-dimensional Ising model with Glauber dynamics. We consider small enough temperature jumps, for which a linear response theory has…
Sawtooth patterns in biomolecules force-extension curves: an equilibrium-statistical-mechanics theory
A. Prados, A. Carpio, L. L. Bonilla
We analyze the force-extension curve for a general class of systems, which are described at the mesoscopic level by a free energy depending on the extension of its components. Simi…
Typical and rare fluctuations in nonlinear driven diffusive systems with dissipation
P. I. Hurtado, A. Lasanta, A. Prados
We consider fluctuations of the dissipated energy in nonlinear driven diffusive systems subject to bulk dissipation and boundary driving. With this aim, we extend the recently-intr…
Nonlinear driven diffusive systems with dissipation: fluctuating hydrodynamics
A. Prados, A. Lasanta, Pablo I. Hurtado
We consider a general class of nonlinear diffusive models with bulk dissipation and boundary driving, and derive its hydrodynamic description in the large size limit. Both the aver…
Large Fluctuations in Driven Dissipative Media
A. Prados, A. Lasanta, Pablo I. Hurtado
We analyze the fluctuations of the dissipated energy in a simple and general model where dissipation, diffusion and driving are the key ingredients. The large deviation function fo…
Statics and dynamics of a harmonic oscillator coupled to a one-dimensional Ising system
A. Prados, L. L. Bonilla, A. Carpio
We investigate an oscillator linearly coupled with a one-dimensional Ising system. The coupling gives rise to drastic changes both in the oscillator statics and dynamics. Firstly,…
Nonequilibrium dynamics of a fast oscillator coupled to Glauber spins
L. L. Bonilla, A. Prados, A. Carpio
A fast harmonic oscillator is linearly coupled with a system of Ising spins that are in contact with a thermal bath, and evolve under a slow Glauber dynamics at dimensionless tempe…
Phase transitions in a mechanical system coupled to Glauber spins
A. Prados, L. L. Bonilla, A. Carpio
A harmonic oscillator linearly coupled with a linear chain of Ising spins is investigated. The spins in the chain interact with their nearest neighbours with a coupling constan…
The Kovacs effect: a master equation analysis
A. Prados, J. J. Brey
The Kovacs or crossover effect is one of the peculiar behaviours exhibited by glasses and other complex, slowly relaxing systems. Roughly it consists in the non-monotonic relaxatio…
Volume fluctuations and linear response in a simple model of compaction
J. J. Brey, A. Prados
By means of a simple model system, the total volume fluctuations of a tapped granular material in the steady state are studied. In the limit of a system with a large number of part…
Adsorption of a binary mixture of monomers with nearest-neighbour cooperative effects
A. Prados, J. J. Brey
A model for the adsorption of a binary mixture on a one-dimensional infinite lattice with nearest neighbour cooperative effects is considered. The particles of the two species are…
Effective dynamics and steady state of an Ising model submitted to tapping processes
A. Prados, J. Javier Brey
A one-dimensional Ising model with nearest neighbour interactions is applied to study compaction processes in granular media. An equivalent particle-hole picture is introduced, wit…
Memory effects in vibrated granular systems
J. Javier Brey, A. Prados
Granular materials present memory effects when submitted to tapping processes. These effects have been observed experimentally and are discussed here in the context of a general ki…
Analytical solution of a one-dimensional Ising model with zero temperature dynamics
A. Prados, J. Javier Brey
The one-dimensional Ising model with nearest neighbour interactions and the zero-temperature dynamics recently considered by Lefevre and Dean -J. Phys. A: Math. Gen. {\bf 34}, L213…
Glass-like dynamical behavior in hierarchical models submitted to continuous cooling and heating processes
A. Prados, J. J. Brey
The dynamical behavior of a kind of models with hierarchically constrained dynamics is investigated. The models exhibit many properties resembling real structural glasses. In parti…