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 08 - Linear Response (Part 3)|
Equivalent expressions for the response function. Response to a sinusoidal force and generalised susceptibility. Symmetry properties of the frequency-dependent susceptibility. Double-time retarded Green function. Spectral function and its relation to the generalised susceptibility.
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