Time dependence in quantum mechanics

@article{Briggs2000TimeDI,
  title={Time dependence in quantum mechanics},
  author={John S. Briggs and Jan Michael Rost},
  journal={The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics},
  year={2000},
  volume={10},
  pages={311-318}
}
  • J. Briggs, J. Rost
  • Published 9 February 1999
  • Physics
  • The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
Abstract:It is shown that the time-dependent equations (Schrödinger and Dirac) for a quantum system can be derived from the time-independent equation for the larger object of the system interacting with its environment, in the limit that the dynamical variables of the environment can be treated semiclassically. The time which describes the quantum evolution is then provided parametrically by the classical evolution of the environment variables. The method used is a generalization of that known… 

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