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Physical Review Letters

Comment on “Observation of Superluminal Behaviors in Wave Propagation”

N. P. Bigelow, C. R. Hägen

Published Jul 16, 2001• 27 citations
Publisher

Abstract

Two Comments on the Letter by D. Mugnai, A. Ranfagni, and R. Ruggeri, Phys. Rev. Lett. 84, 4830 (2000).Points similar to those made in the following two Comments were made in papers by S. Glasgow and J. Peatross, by M. Peshkin, by L. C. Cune and M. Apostol, by W. Luis Moch\'an and V. L. Brudny, and by C. Altucci, C. de Lisio, B. Preziosi, and S. Solimeno.

DOI
10.1103/physrevlett.87.059401

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A path-integral solution of the telegrapher's equation has been demonstrated to give a plausible description of traversal time, for motions either above or below the top of the barrier, in connection with microwave-simulation experiments [see Mugnai, Ranfagni, Ruggeri, and Agresti, Phys. Rev. Lett. 68, 259 (1992)]. This Brief Report reports an extension of the analysis in order to compare the traversal, or delay, time results relative to a beat envelope signal with those as deduced from the distribution function of the randomized time and its analytical continuation in imaginary time.