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A measurement-based approach to quantum arrival times

J. A. Damborenea·I. L. Egusquiza·G. C. Hegerfeldt·J. G. Muga
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Abstract

For a quantum-mechanically spread-out particle we investigate a method for determining its arrival time at a specific location. The procedure is based on the emission of a first photon from a two-level system moving into a laser-illuminated region. The resulting temporal distribution is explicitly calculated for the one-dimensional case and compared with axiomatically proposed expressions. As a main result we show that by means of a deconvolution one obtains the well known quantum mechanical probability flux of the particle at the location as a limiting distribution.

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J. A. Damborenea, I. L. Egusquiza, G. C. Hegerfeldt, J. G. Muga. 2002-09-03. A measurement-based approach to quantum arrival times. https://doi.org/10.1103/physreva.66.052104

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