Zeno dynamics in wave-packet diffraction spreading



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Porras, Miguel A. and Luis Aina, Alfredo and Gonzalo Fonrodona, Isabel and Sanz, Ángel S. (2011) Zeno dynamics in wave-packet diffraction spreading. Physical review A, 84 (5). 052109/1-052109/6. ISSN 1050-2947

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Official URL: http://dx.doi.org/10.1103/PhysRevA.84.052109


We analyze a simple and feasible practical scheme displaying Zeno, anti-Zeno, and inverse-Zeno effects in the observation of wave-packet spreading caused by free evolution. The scheme is valid both in spatial diffraction of classical optical waves and in time diffraction of a quantum wave packet. In the optical realization, diffraction spreading is observed by placing slits between a light source and a light-power detector. We show that the occurrence of Zeno or anti-Zeno effects depends just on the frequency of observations between the source and detector. These effects are seen to be related to the diffraction mode theory in Fabry-Perot resonators.

Item Type:Article
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©2011 American Physical Society. Support from the Ministerio de Ciencia e Innovacion (Spain) under Projects No. FIS2010-22082 (M.A.P., I.G., A.S.S.), No. FIS2008-01267 (A.L.), and No. FIS2010-18132 (A.S.S.) is acknowledged. A.L. also acknowledges support from Project QUITEMAD S2009-ESP-1594, from the Consejeria de Educacion de la Comunidad de Madrid. A.S.S. would also like to thank the Ministerio de Ciencia e Innovacion (Spain) for a "Ramon y Cajal" Grant.

Uncontrolled Keywords:Quasi-stationary state; Quantum-theory; Decay; Paradox
Subjects:Sciences > Physics > Optics
ID Code:30360
Deposited On:27 May 2015 19:06
Last Modified:27 May 2015 19:06

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