28 citations · 28 across the 1 of their papers we have counts for
5 papers
Langevin theory of absorbing phase transitions with a conserved magnitude
J. J. Ramasco, M. A. Munoz, C. A. da Silva Santos
The recently proposed Langevin equation, aimed to capture the relevant critical features of stochastic sandpiles, and other self-organizing systems is studied numerically. This equ…
Dissipative effects on quantum glassy systems
Leticia F. Cugliandolo, Daniel Grempel, Gustavo Lozano +2
We discuss the behavior of a quantum glassy system coupled to a bath of quantum oscillators. We show that the system localizes in the absence of interactions when coupled to a subO…
The Quantum Spherical p-Spin-Glass Model
Leticia F Cugliandolo, D. R. Grempel, Constantino A da Silva Santos
We study a quantum extension of the spherical -spin-glass model using the imaginary-time replica formalism. We solve the model numerically and we discuss two analytical approxim…
From second to first order transitions in a disordered quantum magnet
Leticia F. Cugliandolo, Daniel R. Grempel, Constantino A. da Silva Santos
We study the spin-glass transition in a disordered quantum model. There is a region in the phase diagram where quantum effects are small and the phase transition is second order, a…
Effective drift and diffusivity in non-Gaussian random gradient flows
I. T. Drummond, R. R. Horgan, C. A. da Silva Santos
We study the long-range effective drift and diffusivity of a particle in a random medium moving subject to a given molecular diffusivity and a local drift. The local drift models t…