Locality and the classical limit of quantum mechanics

Details Locality and the classical limit of quantum mechanics Locality and the classical limit of quantum mechanics

2008-09-22

arxiv.org/abs/0809.3764v1

Physics

Quantum Physics

16 pages, LaTeX

Scientific paper

I argue that conventional estimates of the criterion for classical behavior of a macroscopic body are incorrect, because they do not take into account the locality of interactions, which characterizes the behavior of all systems described approximately by local quantum field theory. Black holes are the only localized objects which do not have such a description. The deviations from classical behavior of a macroscopic body, except for those which can be described as classical uncertainties in the initial values of macroscopic variables,are {\it exponentially} small as a function of the volume of the macro-system in microscopic units.

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