Phys. Rev. A 77, 032112 (2008) [4 pages]Disclosing hidden information in the quantum Zeno effect: Pulsed measurement of the quantum time of arrivalReceived 5 December 2007; published 25 March 2008 Repeated measurements of a quantum particle to check its presence in a region of space was proposed long ago [ G. R. Allcock Ann. Phys. 53 286 (1969)] as a natural way to determine the distribution of times of arrival at the orthogonal subspace, but the method was discarded because of the quantum Zeno effect: in the limit of very frequent measurements the wave function is reflected and remains in the original subspace. We show that by normalizing the small bits of arriving (removed) norm, an ideal time distribution emerges in correspondence with a classical local-kinetic-energy distribution. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.77.032112
DOI:
10.1103/PhysRevA.77.032112
PACS:
03.65.Xp, 03.65.Ta, 06.30.Ft
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