Statistical physics

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Statistical mechanics is a branch of theoretical physics that studies, using probability theory, the average behaviour of a mechanical system where the state of the system is uncertain. A common use of statistical mechanics is in explaining the thermodynamic behaviour of large systems.

We can split in two main branches:

  • Equilibrium statistical mechanics
  • Nonequilibrium Statistical Mechanics

The basic ideas of the statistical mechanics are:

  • Complete mechanical state of the system could be encoded as a phase point or quantum state vector.
  • Complete known evolution through equation of evolution as Hamilton’s equations (classical mechanics) or time-dependent Schrödinger equation (quantum mechanics)

To understand the global behavior of the system we can do:

  • Solving the complete interlace-equations system of large N (as it is done in the High-performance simulations)
  • Using tools (statistical tools basically) to get some specific descriptors and predictors of the global phenomena of the system.

See also

Nonequilibrium Statistical Mechanics

Material

Papers

Books