347 citations · 2k across the 54 of their papers we have counts for
42 papers · 1 filter
Optimal paths and dynamical symmetry breaking in the current fluctuations of driven diffusive media
Pablo I. Hurtado
Large deviation theory provides a framework to understand macroscopic fluctuations and collective phenomena in many-body nonequilibrium systems in terms of microscopic dynamics. In…
Molecular hints of two-step transition to convective flow via streamline percolation
P. L. Garrido, P. I. Hurtado
Convection is a key transport phenomenon important in many different areas, from hydrodynamics and ocean circulation to planetary atmospheres or stellar physics. However its micros…
Building continuous time crystals from rare events
R. Hurtado-Gutiérrez, F. Carollo, C. Pérez-Espigares +1
Symmetry-breaking dynamical phase transitions (DPTs) abound in the fluctuations of nonequilibrium systems. Here we show that the spectral features of a particular class of DPTs exh…
The kinetic exclusion process: a tale of two fields
C. Gutiérrez-Ariza, P. I. Hurtado
We introduce a general class of stochastic lattice gas models, and derive their fluctuating hydrodynamics description in the large size limit under a local equilibrium hypothesis.…
Sampling rare events across dynamical phase transitions
Carlos Pérez-Espigares, Pablo I. Hurtado
Interacting particle systems with many degrees of freedom may undergo phase transitions to sustain atypical fluctuations of dynamical observables such as the current or the activit…
Infinite family of universal profiles for heat current statistics in Fourier's law
P. L. Garrido, P. I. Hurtado, N. Tizón-Escamilla
Using tools from large deviation theory, we study fluctuations of the heat current in a model of -dimensional incompressible fluid driven out of equilibrium by a temperature gra…
Dynamical criticality in open systems: non-perturbative physics, microscopic origin and direct observation
Carlos Pérez-Espigares, Federico Carollo, Juan P. Garrahan +1
Driven diffusive systems may undergo phase transitions to sustain atypical values of the current. This leads in some cases to symmetry-broken space-time trajectories which enhance…
Harnessing symmetry to control quantum transport
D. Manzano, P. I. Hurtado
Controlling transport in quantum systems holds the key to many promising quantum technologies. Here we review the power of symmetry as a resource to manipulate quantum transport, a…
Structure of the optimal path to a fluctuation
N. Tizón-Escamilla, P. I. Hurtado, P. L. Garrido
Macroscopic fluctuations have become an essential tool to understand physics far from equilibrium due to the link between their statistics and nonequilibrium ensembles. The optimal…
Order and symmetry-breaking in the fluctuations of driven systems
N. Tizón-Escamilla, C. Pérez-Espigares, P. L. Garrido +1
Dynamical phase transitions (DPTs) in the space of trajectories are one of the most intriguing phenomena of nonequilibrium physics, but their nature in realistic high-dimensional s…
Weak additivity principle for current statistics in d-dimensions
Carlos Pérez-Espigares, Pedro L. Garrido, Pablo I. Hurtado
The additivity principle (AP) allows to compute the current distribution in many one-dimensional (1d) nonequilibrium systems. Here we extend this conjecture to general d-dimensiona…
A violation of universality in anomalous Fourier's law
Pablo I. Hurtado, Pedro L. Garrido
Since the discovery of long-time tails, it has been clear that Fourier's law in low dimensions is typically anomalous, with a size-dependent heat conductivity, though the nature of…
Probing local equilibrium in nonequilibrium fluids
J. J. del Pozo, P. L. Garrido, P. I. Hurtado
We use extensive computer simulations to probe local thermodynamic equilibrium (LTE) in a quintessential model fluid, the two-dimensional hard-disks system. We show that macroscopi…
Scaling laws and bulk-boundary decoupling in heat flow
J. J. del Pozo, P. L. Garrido, P. I. Hurtado
When driven out of equilibrium by a temperature gradient, fluids respond by developing a nontrivial, inhomogeneous structure according to the governing macroscopic laws. Here we sh…
Thermodynamics of currents in nonequilibrium diffusive systems: theory and simulation
Pablo I. Hurtado, Carlos P. Espigares, Jesus J. del Pozo +1
Understanding the physics of nonequilibrium systems remains as one of the major challenges of theoretical physics. This problem can be cracked in part by investigating the macrosco…
Symmetry and the thermodynamics of currents in open quantum systems
Daniel Manzano, Pablo I. Hurtado
Symmetry is a powerful concept in physics, and its recent application to understand nonequilibrium behavior is providing deep insights and groundbreaking exact results. Here we sho…
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…
Dynamical phase transition for current statistics in a simple driven diffusive system
Carlos P. Espigares, Pedro L. Garrido, Pablo I. Hurtado
We consider fluctuations of the time-averaged current in the one-dimensional weakly-asymmetric exclusion process on a ring. The optimal density profile which sustains a given fluct…
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…
Compact Waves in Microscopic Nonlinear Diffusion
P. I. Hurtado, P. L. Krapivsky
We analyze the spread of a localized peak of energy into vacuum for nonlinear diffusive processes. In contrast with standard diffusion, the nonlinearity results in a compact wave w…
Spontaneous Symmetry Breaking at the Fluctuating Level
Pablo I. Hurtado, Pedro L. Garrido
Phase transitions not allowed in equilibrium steady states may happen however at the fluctuating level. We observe for the first time this striking and general phenomenon measuring…
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…
Symmetries in Fluctuations Far from Equilibrium
Pablo I. Hurtado, Carlos Perez-Espigares, Jesus J. del Pozo +1
Fluctuations arise universally in Nature as a reflection of the discrete microscopic world at the macroscopic level. Despite their apparent noisy origin, fluctuations encode fundam…
Large Fluctuations of the Macroscopic Current in Diffusive Systems: A Confirmation of the Additivity Principle
Pablo I. Hurtado, Pedro L. Garrido
Most systems, when pushed out of equilibrium, respond by building up currents of locally-conserved observables. Understanding how microscopic dynamics determines the averages and f…