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Electromagnetic multipole radiation in background cosmologies

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

We offer a pragmatic approach for constructing radiating-pointmultipole solutions to Maxwell's equations in a class of cosmological backgrounds, from the Hertzian oscillator solution. We suggest that the derivation of the latter in terms of differential forms offers certain computational advantages as well as suggesting Lie differentiation of solutions as a natural method to generate new solutions in space-times with isometries. We explicitly demonstrate these ideas by constructing the flux of instantaneous electromagnetic radiation from a harmonic quadrupole in a Robertson-Walker space-time containing flat spatial universes.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Surrey, GU2 5XH, Surrey, UK

    H. R. Sepangi & J. G. Parkhouse

  2. Physics Department, Amir Kabir University, Hafez Avenue, Tehran, Iran

    H. R. Sepangi

  3. School of Physics and Materials, University of Lancaster, LA1 4YB, Bailrigg, UK

    R. W. Tucker

Authors
  1. H. R. Sepangi
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  2. J. G. Parkhouse
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  3. R. W. Tucker
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Corresponding author

Correspondence to R. W. Tucker.

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Sepangi, H.R., Parkhouse, J.G. & Tucker, R.W. Electromagnetic multipole radiation in background cosmologies. Nuovo Cim B 109, 499–506 (1994). https://doi.org/10.1007/BF02728391

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  • DOI: https://doi.org/10.1007/BF02728391

PACS 04.20

PACS 04.40

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