free Fermi gas

См. также в других словарях:

• Fermi gas — A Fermi gas, or Free electron gas, is a collection of non interacting fermions. It is the quantum mechanical version of an ideal gas, for the case of fermionic particles. Electrons in metals and semiconductors and neutrons in a neutron star can… …   Wikipedia

• Fermi energy — The Fermi energy is a concept in quantum mechanics usually referring to the energy of the highest occupied quantum state in a system of fermions at absolute zero temperature. This article requires a basic knowledge of quantum mechanics.Note that… …   Wikipedia

• Free electron model — In three dimensions, the density of states of a gas of fermions is proportional to the square root of the kinetic energy of the particles. In solid state physics, the free electron model is a simple model for the behaviour of valence electrons in …   Wikipedia

• Gas in a box — In quantum mechanics, the results of the quantum particle in a box can be used to look at the equilibrium situation for a quantum ideal gas in a box which is a box containing a large number of molecules which do not interact with each other… …   Wikipedia

• Gas — This article is about the physical properties of gas as a state of matter. For the uses of gases, and other meanings, see Gas (disambiguation). Ga …   Wikipedia

• Fermi–Dirac statistics — Statistical mechanics Thermodynamics · …   Wikipedia

• Ideal gas — Thermodynamics …   Wikipedia

• Two-dimensional gas — A two dimensional gas is a collection of N objects which are constrained to move in a planar or other two dimensional space in a gaseous state. The objects can be: ideal gas elements such as rigid disks undergoing elastic collisions; elementary… …   Wikipedia

• Electron liquid — The Electron Liquid is a model system used by physicists to theoretically study interactions among electrons. The uniform electron liquid is a well known model for simple metals like sodium or Aluminum. The ionic charges are assumed to be smudged …   Wikipedia

• Density functional theory — Electronic structure methods Tight binding Nearly free electron model Hartree–Fock method Modern valence bond Generalized valence bond Møller–Plesset perturbation theory …   Wikipedia

• Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… …   Wikipedia