Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
1996-10-27
J. Stat. Phys. 85 (1996) 489-499
Physics
Condensed Matter
Disordered Systems and Neural Networks
Latex, 9 pages
Scientific paper
10.1007/BF02174216
We expose a functional integration method for the averaging of continuous products $\hat{P}_t$ of $N\times N$ random matrices. As an application, we compute exactly the statistics of the Lyapunov spectrum of $\hat{P}_t$. This problem is relevant to the study of the statistical properties of various disordered physical systems, and specifically to the computation of the multipoint correlators of a passive scalar advected by a random velocity field. Apart from these applications, our method provides a general setting for computing statistical properties of linear evolutionary systems subjected to a white noise force field.
Gamba Andrea
Kolokolov I. V.
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