Part I. Preliminaries. 1. Preliminaries: The Scope of Non-equilibrium Statistical Mechanics. 2. Time Dependent Probability Distribution Functions. 3. Relationship between Theory and Experiments. 4. Force, Flux and Irreversible Thermodynamics. 5. Hydrodynamic Approach to Relaxation Phenomena. 6. Kinetic Theory of Gases: Boltzmann Kinetic Equation and His H-theorem. Part II. Fundamentals. 7. Liouville theorem, Liouville Equation and BBGKY Hierarchy. 8. Time Correlation Function Formalism. 9. Density-Density and Current-Current Time Correlation Functions. 10. Velocity Time Correlation Function. 11. Linear Response Theory and Fluctuation-Dissipation Theorems. 12. Projection Operator Technique. 13. Mori Continued Fraction and Related Applications. 14. Moments and Cumulants. Part III. Phenomenology. 15. Brownian Motion and Langevin Equation. 16. Random Walks. 17. Fokker-Planck, Kramers and Smoluchowski Equations and Their Analytical Solution. 18. Master Equations. 19. Numerical Solution of Smoluchowski and Fokker-Planck Equations. Part. IV. Relaxation Phenomena. 20. Theory of Chemical Reaction Dynamics. 21. Diffusion on Flat and Rugged Energy Landscapes. 22. Rotational diffusion: Study of Orientational Time Correlation Functions. Part V. Advanced Topics. 23. Mode-Coupling Theory of Liquid State Dynamics. 24. Irreversible Thermodynamics Revisited. 25. Rate of Rare Events.

Nonequilibrium statistical mechanics (NESM), practically synonymous with time-dependent statistical mechanics (TDSM), is a beautiful and profound subject, vast in scope, diverse in applications, and indispensable in understanding the changing natural phenomena we encounter in the physical, chemical and biological world. Although time dependent phenomena have been studied from antiquity, the modern subject, the nonequilibrium statistical mechanics, has its genesis in Boltzmann’s 1872 classic paper that aimed at extending Maxwell’s kinetic theory of gases by including intermolecular interactions. Subsequent development of the subject drew upon the seminal work of Einstein and Langevin on Brownian motion, Rayleigh and Stokes on hydrodynamics, and on the works of Onsager, Prigogine, Kramers, Kubo, Mori, and Zwanzig.


One major goal of this book is to develop and present NESM in an organized fashion so that students can appreciate and understand the flow of the subject from postulates to practical uses. This book takes the students on a journey from fundamentals to applications, mostly using simple mathematics, and fundamental concepts. With the advent of computers and computational packages and techniques, a deep intuitive understanding can allow the students to tackle fairly complex problems, like proteins in lipid membranes or solvation of ions in electrolytes used in batteries. The subject is still evolving rapidly, with forays into complex biological events, and materials science.