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The evolution of free wave packets

Andrews, Mark


We discuss four general features of force-free evolution: (1) The spatial spread of any packet changes with time in a very simple way. (2) Over sufficiently short periods of time (whose duration is related to the spread in momentum of the packet) the probability distribution moves but there is little change in shape. (3) After a sufficiently long period (related to the initial spatial spread) the packet settles into a simple form simply related to the momentum distribution in the packet....[Show more]

CollectionsANU Research Publications
Date published: 2007-12
Type: Journal article
Source: American Journal of Physics
DOI: 10.1119/1.2982628


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