192 citations · 933 across the 24 of their papers we have counts for
24 papers
Unraveling anomalous relaxation effects in the thermodynamic limit
Emilio Pomares, Víctor Martín-Mayor, Antonio Lasanta +1
We address two central open problems in the theory of anomalous Mpemba-like relaxations: their extension beyond one spatial dimension and their consistent formulation in the thermo…
The cost of speed: Time-optimal thermal control of trapped Brownian particles
Miguel Ibanez, Antonio Patron-Castro, Antonio Lasanta +3
A thermal analogue of the classical brachistochrone problem, which minimizes the connection time between two equilibrium states of harmonically confined Brownian particles, has rec…
Spacetime symmetries and geometric diffusion
Marc Basquens, Antonio Lasanta, Emanuel Mompó +2
We examine relativistic diffusion through the frame and observer bundles associated with a Lorentzian manifold . Our focus is on spacetimes with a non-trivial isometry group…
Shortcuts of freely relaxing systems using equilibrium physical observables
Isidoro González-Adalid Pemartín, Emanuel Mompó, Antonio Lasanta +2
Many systems, when initially placed far from equilibrium, exhibit surprising behavior in their attempt to equilibrate. Striking examples are the Mpemba effect and the cooling-heati…
Heating and Cooling are Fundamentally Asymmetric and Evolve Along Distinct Pathways
Miguel Ibáñez, Cai Dieball, Antonio Lasanta +2
According to conventional wisdom, a system placed in an environment with a different temperature tends to relax to the temperature of the latter, mediated by the flows of heat and/…
Slow growth of magnetic domains helps fast evolution routes for out-of-equilibrium dynamics
Isidoro González-Adalid Pemartín, Emanuel Mompó, Antonio Lasanta +2
Cooling and heating faster a system is a crucial problem in science, technology and industry. Indeed, choosing the best thermal protocol to reach a desired temperature or energy is…
Kovacs memory effect with an optically levitated nanoparticle
Andrei Militaru, Antonio Lasanta, Martin Frimmer +3
The understanding of the dynamics of nonequilibrium cooling and heating processes at the nanoscale is still an open problem. These processes can follow surprising relaxation paths…
Exponentially accelerated approach to stationarity in Markovian open quantum systems through the Mpemba effect
Federico Carollo, Antonio Lasanta, Igor Lesanovsky
Ergodicity-breaking and slow relaxation are intriguing aspects of nonequilibrium dynamics both in classical and in quantum settings. These phenomena are typically associated with p…
Memory effects in a gas of viscoelastic particles
E. Mompó, M. A. López-Castaño, A. Torrente +2
We study a granular gas of viscoelastic particles (kinetic energy loss upon collision is a function of the particles' relative velocities at impact) subject to a stochastic thermos…
Fluctuation-induced current from freestanding graphene: toward nanoscale energy harvesting
P. M. Thibado, P. Kumar, Surendra Singh +3
At room temperature, micron-sized sheets of freestanding graphene are in constant motion even in the presence of an applied bias voltage. We quantify the out-of-plane movement by c…
Induced correlations and rupture of molecular chaos by anisotropic dissipative Janus hard disks
Antonio Lasanta, Aurora Torrente, Mariano Lopez de Haro
A system of smooth "frozen" Janus-type disks is studied. Such disks cannot rotate and are divided by their diameter into two sides of different inelasticities. Taking as a referenc…
Intruders in disguise: Mimicry effect in granular gases
Antonio Lasanta, Francisco Vega Reyes, Vicente Garzó +1
In general, the total kinetic energy in a multicomponent granular gas of inelastic and rough hard spheres is unequally partitioned among the different degrees of freedom. On the ot…
Large Mpemba-like effect in a gas of inelastic rough hard spheres
Aurora Torrente, Miguel A. López-Castaño, Antonio Lasanta +3
We report the emergence of a giant Mpemba effect in the uniformly heated gas of inelastic rough hard spheres: The initially hotter sample may cool sooner than the colder one, even…
The Mpemba effect in spin glasses is a persistent memory effect
Janus collaboration, M. Baity-Jesi, E. Calore +21
The Mpemba effect occurs when a hot system cools faster than an initially colder one, when both are refrigerated in the same thermal reservoir. Using the custom built supercomputer…
Energy nonequipartition in gas mixtures of inelastic rough hard spheres: The tracer limit
Francisco Vega Reyes, Antonio Lasanta, Andrés Santos +1
The dynamical properties of a tracer or impurity particle immersed in a host gas of inelastic and rough hard spheres in the homogeneous cooling state is studied. Specifically, the…
Hydrodynamics of a Granular Gas in a Heterogeneous Environment
Francisco Vega Reyes, Antonio Lasanta
We analyze the transport properties of a low density ensemble of identical macroscopic particles immersed in an active fluid. The particles are modeled as inelastic hard spheres (g…
When the Hotter Cools More Quickly: Mpemba Effect in Granular Fluids
Antonio Lasanta, Francisco Vega Reyes, Antonio Prados +1
Under certain conditions, two samples of fluid at different initial temperatures present a counterintuitive behavior known as the Mpemba effect: it is the hotter system that cools…
Thermal properties of an impurity immersed in a granular gas of rough hard spheres
Francisco Vega Reyes, Antonio Lasanta, Andrés Santos +1
We study in this work the dynamics of a granular impurity immersed in a low-density granular gas of identical particles. For description of the kinetics of the granular gas and the…
Unified rheology of vibro-fluidized dry granular media: From slow dense flows to fast gas-like regimes
Andrea Gnoli, Antonio Lasanta, Alessandro Sarracino +1
Granular media take on great importance in industry and geophysics, posing a severe challenge to materials science. Their response properties elude known soft rheological models, e…
Lattice models for granular-like velocity fields: Hydrodynamic limit
Alessandro Manacorda, Carlos A. Plata, Antonio Lasanta +2
A recently introduced model describing -on a 1d lattice- the velocity field of a granular fluid is discussed in detail. The dynamics of the velocity field occurs through next-neigh…
An Itinerant Oscillator model with cage inertia for mesorheological granular experiments
A. Lasanta, A. Puglisi
Recent experiments with a rotating probe immersed in weakly fluidized granular materials show a complex behavior on a wide range of timescales. Viscous-like relaxation at high freq…
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…
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…