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Quantum Physics

Title: A measurement-based approach to quantum arrival times

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.
Comments: 11 pages, 4 figures, submitted to Phys. Rev. A
Subjects: Quantum Physics (quant-ph)
Journal reference: Phys. Rev. A 65, 052104 (2002)
DOI: 10.1103/PhysRevA.66.052104
Cite as: arXiv:quant-ph/0209027
  (or arXiv:quant-ph/0209027v1 for this version)

Submission history

From: J. G. Muga [view email]
[v1] Tue, 3 Sep 2002 15:52:35 GMT (38kb)