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lanebeale edited Theory.tex
about 10 years ago
Commit id: d594b9c3812e8cc34e58a6020c13d6204389a0ca
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\end{tiny}
One of the remarkable aspects of ducted whistler waves is that the phase velocity travels at a separate angle to the group velocity and direction of propogation of the wave. The group velocity is given by
$\vec{V}_{gr}=\frac{\mathrm\partial\omega}{\mathrm
\partial\vec{k}} \partial\vec{k}}$