Seven Steps Towards the Classical World

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Journal of Optics B, Vol: 4, Page: 482-488

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Allori, Valia; Duerr, Detlef; Goldstein, Sheldon; Zanghi, Nino
article description
Classical physics is about real objects, like apples falling from trees, whose motion is governed by Newtonian laws. In standard quantum mechanics only the wave function or the results of measurements exist, and to answer the question of how the classical world can be part of the quantum world is a rather formidable task. However, this is not the case for Bohmian mechanics,which, like classical mechanics, is a theory about real objects. In Bohmian terms, the problem of the classical limit becomes very simple: when do the Bohmian trajectories look Newtonian?