Definition of semi-classical in English:



  • (of a theory or method) intermediate between a classical or Newtonian description and one based on quantum mechanics or relativity.

    • ‘It remains the case that most people are quite skeptical that we will ever make sense of the Euclidean path integral, especially in the semi-classical regime.’
    • ‘We demonstrate that the classical and semiclassical models provide a physically reasonable estimate of both the timescale of vibrational relaxation and the pathways of the energy flow.’
    • ‘Rotational contributions were estimated in the semiclassical approximation for the free rotor considering both monomers and dimers as rigid molecules.’
    • ‘A semiclassical analysis of the electronic transition process indicates that a significant fraction of the S 1 population decays to S 0 at each crossing point.’
    • ‘One might have anticipated that the nature of very low-frequency modes might be amenable to semiclassical analysis.’