Quantum Mechanics of Individual Systems

  title={Quantum Mechanics of Individual Systems},
  author={J. Hartle},
  journal={American Journal of Physics},
  • J. Hartle
  • Published 1968
  • Computer Science, Physics
  • American Journal of Physics
A formulation of quantum mechanics, which begins by postulating assertions for individual physical systems, is given. The statistical predictions of quantum mechanics for infinite ensembles are then derived from its assertions for individual systems. A discussion of the meaning of the “state” of an individual quantum mechanical system is given, and an application is made to the clarification of some of the paradoxical features of the theory. 
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