Quantum arrival time measurement and backflow effect
J. G. Muga, J. P. Palao, C. R. Leavens
Abstract
The current density for a freely evolving state without negative momentum components can temporarily be negative. The operational arrival time distribution, defined by the absorption rate of an ideal detector, is calculated for a model detector and compared with recently proposed distributions. Counterintuitive features of the backflow regime are discussed.
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