Definition of equipartition in US English:


(also equipartition of energy)


  • 1The equal distribution of the kinetic energy of a system among its various degrees of freedom.

    • ‘Since the network is well-appreciated as soft, thermal fluctuations even in an unstressed portion of network were expected to be many tens of nanometers based on simple equipartition ideas.’
    • ‘In this work he gave what Thomson considered the first proof of the Waterston-Maxwell equipartition theorem.’
    • ‘The researchers expected the array to relax into a random equipartition of energies.’
    • ‘In the bacterium, equipartition might thus be achieved either if the cell divides at a length for which the homogeneous state is stable or if period-doubling occurs before or at an initial stage of cytokinesis.’
    1. 1.1 The principle that equipartition exists for a system in thermal equilibrium.
      • ‘First, the system again obeys equipartition as from Eq. 7, and at least qualitatively, the caged correlations are actually less than in a pure lipid, i.e., the system seems to exhibit more Brownian-like dynamics.’
      • ‘Relatively recent microrheology methods exploit the equipartition principle-where kBT drives each mode-through a generalization to viscoelastic materials including gels and cytoskeletal networks.’
      • ‘According to the principle of equipartition of energy, the energy per degree of freedom for this kind of motion (called translational motion) is equal to 0.5RT, where R is the molar gas constant and T is the absolute temperature.’
      • ‘However, Marcus's expression is only applicable at temperatures sufficiently high that equipartition holds for all vibrational modes coupled to the ET reaction.’
      • ‘The equipartition principle further predicts a measurable molar heat capacity for such an atom of 0.5R (about 1 cal /°C-mole) per degree of freedom.’