On the Radiating and Nonradiating Components of Scalar, Electromagnetic, and Weak Gravitational Sources

Edwin A. Marengo, Richard W Ziolkowski

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We derive a new description of two complementary classes of scalar, vector, or tensor sources, namely, nonradiating (NR) sources and sources that lack a NR part, i.e., "purely radiating" sources. The class of purely radiating sources is shown to be exactly the class of solutions - within the source's support - of the homogeneous form of the associated partial differential equation relating the sources to their fields; i.e., purely radiating sources are themselves fields. We show that this result is related to the well-known reciprocity principle and establish a new definition of a localized NR source based on that principle. A broad class of physically relevant sources, all of which possess a NR part, is identified. The role of NR sources in absorption of radiation and energy storage is addressed.

Original languageEnglish (US)
Pages (from-to)3345-3349
Number of pages5
JournalPhysical Review Letters
Volume83
Issue number17
StatePublished - Oct 25 1999

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electromagnetism
scalars
energy storage
partial differential equations
tensors
radiation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

On the Radiating and Nonradiating Components of Scalar, Electromagnetic, and Weak Gravitational Sources. / Marengo, Edwin A.; Ziolkowski, Richard W.

In: Physical Review Letters, Vol. 83, No. 17, 25.10.1999, p. 3345-3349.

Research output: Contribution to journalArticle

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