Sound beyond the speed of light: destructive interference, anomalous dispersion and nonlocality of near field
M.E. Perel'man
TL;DR
This paper explains superluminal sound pulse phenomena beyond light speed through nonlocality in near electromagnetic fields, providing insights into anomalous dispersion and destructive interference.
Contribution
It introduces a novel explanation for superluminal sound pulses based on nonlocality in near fields, expanding understanding of anomalous dispersion phenomena.
Findings
Sound pulses can appear to travel faster than light due to near-field nonlocality.
Superluminal phenomena are explained by destructive interference and anomalous dispersion.
Near electromagnetic fields exhibit nonlocal behavior that influences wave propagation.
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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Taxonomy
TopicsMechanical and Optical Resonators · Quantum optics and atomic interactions · Terahertz technology and applications