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7th LOIS Workshop
June 16-18, 2008 | Växjö, Sweden
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Arranged by
LOIS Space Centre,
Växjö and PHISP,
IRF, Uppsala In collaboration with Växjö University and Videum Science Park Sponsored by CDP, Uppsala University, IBM Sweden and the Swedish National Space Board |
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Conserved quantities in classical electrodynamics
and their use in radio studies of space
Jan Bergman
jb@irfu.se
Swedish Institute of Space Physics (IRF)
Uppsala, Sweden
Jan Bergman
jb@irfu.se
Swedish Institute of Space Physics (IRF)
Uppsala, Sweden
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Abstract
EM wave polarization in two, three, and four dimensions is
discussed. A set of covariant polarization tensors is presented.
Dynamical equations,in the form of conservation laws, are derived
for two of these tensors. It is suggested that one of these laws
corresponds to conservation of spin angular momentum. Its relation
to (orbital) angular momentum is disucsse in the case of electric
multipole radiation.
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