11 citations · 44 across the 7 of their papers we have counts for
7 papers
Compressed sensing with l0-norm: statistical physics analysis and algorithms for signal recovery
D. Barbier, C Lucibello, L. Saglietti +2
Noiseless compressive sensing is a protocol that enables undersampling and later recovery of a signal without loss of information. This compression is possible because the signal i…
Generalised Gibbs Ensemble for spherically constrained harmonic models
Damien Barbier, Leticia F. Cugliandolo, Gustavo S. Lozano +1
We build and analytically calculate the Generalised Gibbs Ensemble partition function of the integrable Soft Neumann Model. This is the model of a classical particle which is const…
Destruction of Localization by Thermal Inclusions: Anomalous Transport and Griffiths Effects in the Anderson and André-Aubry-Harper Models
Xhek Turkeshi, Damien Barbier, Leticia F. Cugliandolo +2
We discuss and compare two recently proposed toy models for anomalous transport and Griffiths effects in random systems near the Many-Body Localization transitions: the random deph…
Finite size effects and loss of self-averageness in the relaxational dynamics of the spherical Sherrington-Kirkpatrick model
Damien Barbier, Pedro H. de Freitas Pimenta, Leticia F. Cugliandolo +1
We revisit the gradient descent dynamics of the spherical Sherrington-Kirkpatrick () model with finite number of degrees of freedom. For fully random initial conditions we con…
(Non equilibrium) Thermodynamics of Integrable models: The Generalized Gibbs Ensemble description of the classical Neumann Model
Damien Barbier, Leticia F. Cugliandolo, Gustavo S. Lozano +1
We study a classical integrable (Neumann) model describing the motion of a particle on the sphere, subject to harmonic forces. We tackle the problem in the infinite dimensional lim…
A constrained TAP approach for disordered spin models: application to the mixed spherical case
Damien Barbier, Leticia Cugliandolo
We revisit the metastability properties of the mixed p-spin spherical disordered models. Firstly, using known methods, we show that there is temperature chaos in a broad range of t…
Pre-asymptotic dynamics of the infinite size Neumann (p=2 spherical) model
Damien Barbier, Leticia F. Cugliandolo, Gustavo S. Lozano +3
In this contribution we further study the classical disordered p=2 spherical model with Hamiltonian dynamics, or in integrable systems terms, the Neumann model, in the infinite siz…