46 citations · 329 across the 23 of their papers we have counts for
23 papers
Many-body activity emerging in a monolayer of air-fluidized hollow pentagons
Wan-Jung Lin, Bohan Wu-Zhang, Rodrigo Fernández-Quevedo García +6
Particles governed by many-body interactions exhibit remarkably complex structures and dynamics. We experimentally investigate a monolayer of pentagon particles subjected to an up-…
Spontaneous Emergence of Solitary Waves in Active Flow Networks with Elastic Elements
Rodrigo Fernández-Quevedo García, Gonçalo Cruz Antunes, Jens Harting +6
Flow networks are fundamental for understanding systems such as animal and plant vasculature or power distribution grids. These networks can encode, transmit, and transform informa…
The fluidic memristor: collective phenomena in elastohydrodynamic networks
Alejandro Martinez-Calvo, Matthew D Biviano, Anneline Christensen +3
Fluid flow networks are ubiquitous and can be found in a broad range of contexts, from human-made systems such as water supply networks to living systems like animal and plant vasc…
Known by the company we keep: `Triadic influence' as a proxy for compatibility in social relationships
Miguel Ruíz-García, Juan Ozaita, María Pereda +4
Networks of social interactions are the substrate upon which civilizations are built. Often, we create new bonds with people that we like or feel that our relationships are damaged…
Discovering dynamic laws from observations: the case of self-propelled, interacting colloids
Miguel Ruiz-Garcia, C. Miguel Barriuso G., Lachlan C. Alexander +3
Active matter spans a wide range of time and length scales, from groups of cells and synthetic self-propelled particles to schools of fish, flocks of birds, or even human crowds. T…
Model architecture can transform catastrophic forgetting into positive transfer
Miguel Ruiz-Garcia
The work of McCloskey and Cohen popularized the concept of catastrophic interference. They used a neural network that tried to learn addition using two groups of examples as two di…
Tilting the playing field: Dynamical loss functions for machine learning
Miguel Ruiz-Garcia, Ge Zhang, Samuel S. Schoenholz +1
We show that learning can be improved by using loss functions that evolve cyclically during training to emphasize one class at a time. In underparameterized networks, such dynamica…
Coherence Resonance and Stochastic Resonance in an Excitable Semiconductor Superlattice
Emanuel Mompo, Miguel Ruiz Garcia, Manuel Carretero +3
Collective electron transport causes a weakly coupled semiconductor superlattice under dc voltage bias to be an excitable system with degrees of freedom: electron densities…
Buckling of thermalized elastic sheets
Ali Morshedifard, Miguel Ruiz-Garcia, Mohammad Javad Abdolhosseini Qomi +1
Steady progress in the miniaturization of structures and devices has reached a scale where thermal fluctuations become relevant and it is thus important to understand how such fluc…
Emergent dynamics in excitable flow systems
Miguel Ruiz-Garcia, Eleni Katifori
Flow networks can describe many natural and artificial systems. We present a model for a flow system that allows for volume accumulation, includes conduits with a non-linear relati…
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…
Topologically controlled emergent dynamics in flow networks
Miguel Ruiz-Garcia, Eleni Katifori
Flow networks are essential for both living organisms and enginneered systems. These networks often present complex dynamics controlled, at least in part, by their topology. Previo…
Large-scale critical behavior of the rippling phase transition for graphene membranes
Tommaso Cea, Miguel Ruiz-Garcia, Luis Bonilla +1
We analyze the spontaneous rippling of graphene membranes as function of the coupling between lattice deformations and electrons. We numerically study a model of an elastic membran…
A numerical study of the rippling instability driven by electron-phonon coupling in graphene
Tommaso Cea, Miguel Ruiz-Garcia, Luis Bonilla +1
Suspended graphene exhibits ripples of size ranging from 50 to 100 Å and height 10Å, however, their origin remains undetermined. Previous theoretical works have proposed that…
Tuning and jamming reduced to their minima
Miguel Ruiz-Garcia, Andrea J. Liu, Eleni Katifori
Inspired by protein folding, we introduce funnels into the complex cost function landscapes of two processes, the tuning of networks, and the jamming of ideal spheres. In both proc…
Thermal rectification with interacting electronic channels: Exploiting degeneracy, quantum superpositions and interference
Alejandro Marcos-Vicioso, Carmen López-Jurado, Miguel Ruiz-Garcia +1
This work explores different mechanisms that induce thermal rectification in the nanoscale. The presence of interacting energy channels combined with simple asymmetries is sufficie…
Parameter dependence of high-frequency nonlinear oscillations and intrinsic chaos in short GaAs/(Al,Ga)As superlattices
Jonathan Essen, Miguel Ruiz-Garcia, Ian Jenkins +3
We explore the design parameter space of short (5--25 period), n-doped, Ga/(Al,Ga)As semiconductor superlattices (SSLs) in the sequential resonant tunneling regime. We consider SSL…
Noise-enhanced chaos in a weakly coupled GaAs/(Al,Ga)As superlattice
Zhizhen Yin, Helun Song, Yaohui Zhang +5
Noise-enhanced chaos in a doped, weakly coupled GaAs/Al_{0.45}Ga_{0.55}As superlattice has been observed at room temperature in experiments as well as in the results of the simulat…
STM driven transition from rippled to buckled graphene in a spin-membrane model
Miguel Ruiz-Garcia, Luis L. Bonilla, Antonio Prados
We consider a simple spin-membrane model for rippling in graphene. The model exhibits transitions from a flat but rippled membrane to a buckled one. At high temperature the transit…
Enhancing Chaotic Behavior at room temperature in GaAs/(Al,Ga)As Superlattices
Miguel Ruiz-Garcia, Jonathan Essen, Manuel Carretero +2
Previous theoretical and experimental work has put forward 50-period semiconductor superlattices as fast, true random number generators at room temperature. Their randomness stems…
Critical radius and temperature for buckling in graphene
L. L. Bonilla, M. Ruiz-Garcia
In this work, we find an analytical flat-membrane solution to the saddle point equations, derived by Guinea et al. [Phys. Rev. B 89, 125428 (2014)], for the case of a suspended gra…
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…
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…