Eric DeGiuli
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View article: Noise equals control
Noise equals control Open
Stochastic systems have a control-theoretic interpretation in which noise plays the role of control. In the weak-noise limit, relevant at low temperatures or in large populations, this leads to a precise mathematical mapping: The most prob…
View article: Is stochastic thermodynamics the key to understanding the energy costs of computation?
Is stochastic thermodynamics the key to understanding the energy costs of computation? Open
The relationship between the thermodynamic and computational properties of physical systems has been a major theoretical interest since at least the 19th century. It has also become of increasing practical importance over the last half-cen…
View article: Is stochastic thermodynamics the key to understanding the energy costs of computation?
Is stochastic thermodynamics the key to understanding the energy costs of computation? Open
The relationship between the thermodynamic and computational characteristics of dynamical physical systems has been a major theoretical interest since at least the 19th century, and has been of increasing practical importance as the energe…
View article: Robustness of the Random Language Model
Robustness of the Random Language Model Open
The Random Language Model (De Giuli 2019) is an ensemble of stochastic context-free grammars, quantifying the syntax of human and computer languages. The model suggests a simple picture of first language learning as a type of annealing in …
View article: Fermionic theory of nonequilibrium steady states
Fermionic theory of nonequilibrium steady states Open
As the quantification of metabolism, nonequilibrium steady states play a central role in living matter, but are beyond the purview of equilibrium statistical mechanics. Here we develop a fermionic theory of nonequilibrium steady states in …
View article: Universal Slow Dynamics of Chemical Reaction Networks
Universal Slow Dynamics of Chemical Reaction Networks Open
Understanding the emergent behavior of chemical reaction networks (CRNs) is a fundamental aspect of biology and its origin from inanimate matter. A closed CRN monotonically tends to thermal equilibrium, but when it is opened to external re…
View article: Dynamical mean-field theory: from ecosystems to reaction networks
Dynamical mean-field theory: from ecosystems to reaction networks Open
Both natural ecosystems and biochemical reaction networks involve populations of heterogeneous agents whose cooperative and competitive interactions lead to a rich dynamics of species’ abundances, albeit at vastly different scales. The mai…
View article: Dynamical mean-field theory: from ecosystems to reaction networks
Dynamical mean-field theory: from ecosystems to reaction networks Open
Both natural ecosystems and biochemical reaction networks involve populations of heterogeneous agents whose cooperative and competitive interactions lead to a rich dynamics of species' abundances, albeit at vastly different scales. The mai…
View article: Random quench predicts universal properties of amorphous solids
Random quench predicts universal properties of amorphous solids Open
Amorphous solids display numerous universal features in their mechanics, structure, and response. Current models assume heterogeneity in mesoscale elastic properties, but require fine-tuning in order to quantitatively explain vibrational p…
View article: Report on 2008.11896v2
Report on 2008.11896v2 Open
Amorphous solids display numerous universal features in their mechanics, structure, and response.Current models assume heterogeneity in mesoscale elastic properties, but require fine-tuning in order to quantitatively explain vibrational pr…
View article: Report on 2008.11896v2
Report on 2008.11896v2 Open
Amorphous solids display numerous universal features in their mechanics, structure, and response.Current models assume heterogeneity in mesoscale elastic properties, but require fine-tuning in order to quantitatively explain vibrational pr…
View article: Breakdown of random matrix universality in Markov models
Breakdown of random matrix universality in Markov models Open
Biological systems need to react to stimuli over a broad spectrum of timescales. If and how this ability can emerge without external fine-tuning is a puzzle. We consider here this problem in discrete Markovian systems, where we can leverag…
View article: Glassy gravity
Glassy gravity Open
Euclidean quantum gravity is reconsidered, in the conformal mode approximation. Applying techniques from glass theory, we argue that the Euclidean partition function hides metastable states, which can be counted. This may reconcile conflic…
View article: Renormalization of elastic quadrupoles in amorphous solids
Renormalization of elastic quadrupoles in amorphous solids Open
Plasticity in amorphous solids is mediated by localized quadrupolar instabilities, but the mechanism by which an amorphous solid eventually fails or melts is debated. In this work we argue that these phenomena can be investigated in the mo…
View article: Random Language Model
Random Language Model Open
Many complex generative systems use languages to create structured objects. We consider a model of random languages, defined by weighted context-free grammars. As the distribution of grammar weights broadens, a transition is found from a r…
View article: Field Theory for Amorphous Solids
Field Theory for Amorphous Solids Open
Glasses at low temperature fluctuate around their inherent states; glassy anomalies reflect the structure of these states. Recently, there have been numerous observations of long-range stress correlations in glassy materials, from supercoo…
View article: Edwards field theory for glasses and granular matter
Edwards field theory for glasses and granular matter Open
A minimal description of the inherent states of amorphous solids is\npresented. Using field theory, applicable when a system is probed at long\nlength scales, it is shown that athermal amorphous solids have long-range\ncorrelations in thei…
View article: Friction law and hysteresis in granular materials
Friction law and hysteresis in granular materials Open
Significance The macroscopic friction of particulate materials often weakens as flow rate is increased. This property is responsible for important intermittent phenomena in geophysics, including earthquakes and landslides. However, it is n…
View article: Unifying Suspension and Granular flows near Jamming
Unifying Suspension and Granular flows near Jamming Open
Rheological properties of dense flows of hard particles are singular as one approaches the jamming threshold where flow ceases, both for granular flows dominated by inertia, and for over-damped suspensions. Concomitantly, the lengthscale c…
View article: Effect of friction on dense suspension flows of hard particles
Effect of friction on dense suspension flows of hard particles Open
We use numerical simulations to study the effect of particle friction on suspension flows of non-Brownian hard particles. By systematically varying the microscopic friction coefficient μ_{p} and the viscous number J, we build a phase diagr…
View article: Scaling for hard-sphere colloidal glasses near jamming
Scaling for hard-sphere colloidal glasses near jamming Open
Hard-sphere colloids are model systems in which to study the glass transition and universal properties of amorphous solids. Using covariance matrix analysis to determine the vibrational modes, we experimentally measure here the scaling beh…
View article: Comment on “What Determines the Static Force Chains in Stressed Granular Media?”
Comment on “What Determines the Static Force Chains in Stressed Granular Media?” Open
Comment on O. Gendelman, Y. G. Pollack, I. Procaccia, S. Sengupta, and J.\nZylberg, Physical Review Letters 116, 078001 (2016).\n
View article: Phase diagram for inertial granular flows
Phase diagram for inertial granular flows Open
Flows of hard granular materials depend strongly on the interparticle friction coefficient μ_{p} and on the inertial number I, which characterizes proximity to the jamming transition where flow stops. Guided by numerical simulations, we de…
View article: Erratum: On variational arguments for vibrational modes near jamming
Erratum: On variational arguments for vibrational modes near jamming Open
Reference EPFL-ARTICLE-221872doi:10.1209/0295-5075/114/39901View record in Web of Science Record created on 2016-10-18, modified on 2017-12-10