Statistical Mechanics of Gravitating Systems in Static and Cosmological Backgrounds

  • Thanu Padmanabhan
Part of the Lecture Notes in Physics book series (LNP, volume 602)


This pedagogical review addresses several issues related to statistical description of gravitating systems in both static and expanding backgrounds, focusing on the latter. After briefly reviewing the results for the static background, I describe the key issues and recent progress in the context of gravitational clustering of collision-less particles in an expanding universe. The questions addressed include: (a) How does the power injected into the system at a given wave number spread to smaller and larger scales? (b) How does the power spectrum of density fluctuations behave asymptotically at late times? (c) What are the universal characteristics of gravitational clustering that are independent of the initial conditions and manifest at the late time evolution of the system? The review is intended for non cosmologists and will be of interest to people working in fluid mechanics, non linear dynamics and condensed matter physics.


Correlation Function Power Spectrum Statistical Mechanic Gravitational Potential Canonical Ensemble 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Thanu Padmanabhan
    • 1
  1. 1.IUCAA, Pune University CampusPune - 7India

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