Statistical mechanics

2017-07-30T10:05:16+03:00[Europe/Moscow] en true Equipartition theorem, Bose–Einstein condensate, Brownian motion, Fermi gas, Bose gas, Density matrix, Quantum statistical mechanics, Magnetic refrigeration, Econophysics, Granularity, Ensemble average (statistical mechanics), Planck's law, Melville S. Green, Gibbs algorithm, Renormalization group, Path integral formulation, Boltzmann constant flashcards Statistical mechanics
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  • Equipartition theorem
    In classical statistical mechanics, the equipartition theorem is a general formula that relates the temperature of a system with its average energies.
  • Bose–Einstein condensate
    ("Super atom" redirects here. For clusters of atoms that seem to exhibit some of the properties of elemental atoms, see Superatom.) A Bose–Einstein condensate (BEC) is a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero (that is, very near 0 K or −273.15 °C).
  • Brownian motion
    Brownian motion or pedesis (from Ancient Greek: πήδησις /pέːdεːsis/ "leaping") is the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with the fast-moving atoms or molecules in the gas or liquid.
  • Fermi gas
    A Fermi gas is an ensemble of a large number of fermions (named after Enrico Fermi).
  • Bose gas
    An ideal Bose gas is a quantum-mechanical version of a classical ideal gas.
  • Density matrix
    A density matrix is a matrix that describes a quantum system in a mixed state, a statistical ensemble of several quantum states.
  • Quantum statistical mechanics
    Quantum statistical mechanics is statistical mechanics applied to quantum mechanical systems.
  • Magnetic refrigeration
    Magnetic refrigeration is a cooling technology based on the magnetocaloric effect.
  • Econophysics
    Econophysics is an interdisciplinary research field, applying theories and methods originally developed by physicists in order to solve problems in economics, usually those including uncertainty or stochastic processes and nonlinear dynamics.
  • Granularity
    Granularity (also called "graininess", the quality of being grainy) is the extent to which a material or system is composed of distinguishable pieces or grains.
  • Ensemble average (statistical mechanics)
    In statistical mechanics, the ensemble average is defined as the mean of a quantity that is a function of the microstate of a system (the ensemble of possible states), according to the distribution of the system on its micro-states in this ensemble.
  • Planck's law
    Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature T.
  • Melville S. Green
    Melville Saul Green (1922-27 March 1979) was a statistical physicist.
  • Gibbs algorithm
    In statistical mechanics, the Gibbs algorithm, introduced by J.
  • Renormalization group
    In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales.
  • Path integral formulation
    The path integral formulation of quantum mechanics is a description of quantum theory which generalizes the action principle of classical mechanics.
  • Boltzmann constant
    The Boltzmann constant (kB or k), named after Ludwig Boltzmann, is a physical constant relating energy at the individual particle level with temperature.