A measurement-based approach to quantum arrival times
量子物理
2009-11-07 v1
摘要
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.
引用
@article{arxiv.quant-ph/0209027,
title = {A measurement-based approach to quantum arrival times},
author = {J. A. Damborenea and I. L. Egusquiza and G. C. Hegerfeldt and J. G. Muga},
journal= {arXiv preprint arXiv:quant-ph/0209027},
year = {2009}
}
备注
11 pages, 4 figures, submitted to Phys. Rev. A