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 12 - Linear Response Theory (Part 7) |
Spectral function in terms of the transition frequencies of a system. Master analytic function from the spectral function. Boundary values of the master function: Retarded and advanced susceptibilities. Fourier representation of two-time correlation functions. Fourier representation of two-time anti-commutator.
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