Information AboutFermi Gas |
| CATEGORIES ABOUT FERMI GAS | |
| gases | |
| thermodynamics | |
| statistical mechanics | |
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It is possible to define a Fermi Temperature below which the gas can be considered degenerate. This temperature depends on the mass of the fermions and the energy Density Of States . For metals, the electron gas's Fermi temperature is generally many thousands of Kelvin s, so they can be considered degenerate. The maximum energy of the fermions at zero temperature is called the Fermi Energy . The Fermi energy surface in momentum space is known as the ''Fermi surface''. Since interactions are neglected by definition, the problem of treating the equilibrium properties and dynamical behaviour of a Fermi gas reduces to the study of the behaviour of single independent particles. As such, it is still relatively tractable and forms the starting point for more advanced theories (such as Fermi Liquid Theory or Perturbation Theory in the interaction) which take into account interactions to some degree of accuracy. SEE ALSO |
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