Nonequilibrium Statistical Mechanics
Nonequilibrium Statistical Mechanics. Instructor: Professor V. Balakrishnan, Department of Physics, IIT Madras. Thermal fluctuations, Langevin dynamics, Brownian motion and diffusion, Fokker-Planck equations, linear response theory, fluctuation-dissipation relations, the Boltzmann equation, critical phenomena, scaling and critical exponents. (from nptel.ac.in)
| Lecture 20 - The Generalized Langevin Equation (Part 1) |
Inconsistency in the Langevin model: non-stationarity of the velocity. Divergence of mean squared acceleration. Generalised Langevin equation and memory kernel. Frequency-dependent friction. Dynamic mobility in the generalised model.
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