Sound beyond the speed of light: destructive interference, anomalous dispersion and nonlocality of near field

2007/07/11 by M. E. Perel'man, M.E. Perel'man, Perel'man, M. E.
Engineering · Physics and Astronomy · #Classical Physics (physics.class-ph) #FOS: Physical sciences #Mechanical and Optical Resonators #Optics (physics.optics) #Quantum optics and atomic interactions #Terahertz technology and applications #physics.class-ph #physics.optics

paper · pdf · doi:10.48550/arxiv.0707.1624

5 pages

arxiv created 2007/07/11 · openalex publication_date 2007/07/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Experimentally fixed sound pulse beyond of light speed in the region of anomalous dispersion [W. M. Robertson, e. a. Appl. Phys. Lett, 90, 014102 (2007)] can be explained, as well as the similar superluminal phenomena, by "the nonlocality in the small" of near electromagnetic field at transferring of relevanted excitations.

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