Identification of the radiative and nonradiative parts of a wave field

We present a method for decomposing a wave field, described by a second-order ordinary differential equation, into a radiative component and a nonradiative one, using a biorthonormal system related to the problem under consideration. We show that it is possible to select a special system such that t...

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Bibliographic Details
Published in:Physical review letters 2001-08, Vol.87 (6), p.060401-060401, Article 060401
Main Authors: Hoenders, B J, Ferwerda, H A
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIFFERENTIAL EQUATIONS
FIELD THEORIES
RELATIVITY THEORY
WAVE EQUATIONS
WAVE PROPAGATION
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Summary:We present a method for decomposing a wave field, described by a second-order ordinary differential equation, into a radiative component and a nonradiative one, using a biorthonormal system related to the problem under consideration. We show that it is possible to select a special system such that the wave field is purely radiating. We discuss the differences and analogies with approaches which, unlike our approach, start from the corresponding sources of the field.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.060401