33 citations · 47 across the 2 of their papers we have counts for
7 papers
Linear Response and Fluctuation Dissipation Theorem for non-Poissonian Renewal Processes
Gerardo Aquino, Paolo Grgolini, Bruce J. West
The Continuous Time Random Walk (CTRW) formalism is used to model the non-Poisson relaxation of a system response to perturbation. Two mechanisms to perturb the system are analyzed…
Memory Effects in the Standard Model for Glasses
Gerardo Aquino, Armen Allahverdyan, Theo M. Nieuwenhuizen
The standard model of glasses is an ensemble of two-level systems interacting with a thermal bath. The general origin of memory effects in this model is a quasi-stationary but non-…
Kovacs effect in solvable model glasses
Gerardo Aquino, Luca Leuzzi, Theo M. Nieuwenhuizen
The Kovacs protocol, based on the temperature shift experiment originally conceived by A.J. Kovacs and applied on glassy polymers, is implemented in an exactly solvable model with…
Kovacs Effect in a Fragile Glass Model
Gerardo Aquino, Luca Leuzzi, Theo M. Nieuwenhuizen
The Kovacs protocol, based on the temperature shift experiment originally conceived by A.J. Kovacs for glassy polymers, is implemented in an exactly solvable dynamical model. This…
Correlation function and generalized master equation of arbitrary age
Paolo Allegrini, Gerardo Aquino, Paolo Grigolini +3
We study a two-state statistical process with a non-Poisson distribution of sojourn times. In accordance with earlier work, we find that this process is characterized by aging and…
Aging and Rejuvenation with Fractional Derivatives
Gerardo Aquino, Mauro Bologna, Paolo Grigolini +1
We discuss a dynamic procedure that makes the fractional derivatives emerge in the time asymptotic limit of non-Poisson processes. We find that two-state fluctuations, with an inve…