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- L F Cugliandolo, J Kurchan
- 2008

We study the non-equilibrium relaxation of the spherical spin-glass model with p-spin interactions in the N → ∞ limit. We analytically solve the asymptotics of the magnetization and the correlation and response functions for long but finite times. Even in the thermodynamic limit the system exhibits 'weak' (as well as 'true') ergodicity breaking and aging… (More)

We show that, in nonequilibrium systems with small heat flows, there is a timescale dependent effective temperature which plays the same role as the thermodynamical temperature, in that it controls the direction of heat flows and acts as a criterion for thermalization. We simultaneously treat the case of stationary systems with weak stirring and of glassy… (More)

- Eric Vincent, Jacques Hammann, Miguel Ocio, Jean-Philippe Bouchaud, Leticia F. Cugliandolo
- 1997

- Horacio E Castillo, Claudio Chamon, Leticia F Cugliandolo, Malcolm P Kennett
- Physical review letters
- 2002

We introduce a set of theoretical ideas that form the basis for an analytical framework capable of describing nonequilibrium dynamics in glassy systems. We test the resulting scenario by comparing its predictions with numerical simulations of short-range spin glasses. Local fluctuations and responses are shown to be connected by a generalized local… (More)

- L. F. Cugliandolo
- Neural Computation
- 1994

We revisit the derivation of the density of states of sparse random matrices. We derive a recursion relation that allows one to compute the spectrum of the matrix of incidence for finite trees that determines completely the low concentration limit. Using the iterative scheme introduced by Biroli and Monasson [J. Phys. A 32, L255 (1999)] we find an… (More)

These lecture notes can be read in two ways. The first two Sections contain a review of the phenomenology of several physical systems with slow nonequi-librium dynamics. In the Conclusions we summarize the scenario for this temporal evolution derived from the solution to some solvable models (p spin and the like) that are intimately connected to the mode… (More)

- L F Cugliandolo, J Kurchan, G Parisi
- 2008

We analyse the Langevin dynamics of the random walk, the scalar field, the X-Y model and the spinoidal decomposition. We study the deviations from the equilibrium dynamics theorems (FDT and homogeneity), the asymp-totic behaviour of the systems and the aging phenomena. We compare the results with the dynamical behaviour of (random) spin-glass mean-field… (More)

We study numerically the out of equilibrium dynamics of the hypercubic cell spin glass in high dimensionalities. We obtain evidence of aging effects qualitatively similar both to experiments and to simulations of low dimensional models. This suggests that the Sherrington-Kirkpatrick model as well as other mean-field finite connectivity lattices can be used… (More)

- L Berthier, L F Cugliandolo, J L Iguain
- Physical review. E, Statistical, nonlinear, and…
- 2001

We study the dynamics of a glassy model with infinite range interactions externally driven by an oscillatory force. We find a well-defined transition in the (temperature-amplitude-frequency) phase diagram between (i) a "glassy" state characterized by the slow relaxation of one-time quantities, aging in two-time quantities and a modification of the… (More)