Douglas J. Mason, Mario F. Borunda, Eric J. Heller
We develop a new interpretation of the probability flux by deriving its eigenstates and relating them to coherent state projections on a quantum wavefunction. By connecting the flux operator to coherent states, we have extended its definition to produce pictures of the semiclassical paths underlying the wavefunction, a boon to interpreting the dynamics of systems where the probability flux is uniformly zero or strongly misleading. The semiclassical picture we give here is closer to experiments based on angle-resolved photoemission spectroscopy than the traditional flux measure.
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http://arxiv.org/abs/1205.0291
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