Classical Physics


A Rotating Electric Dipole Radiates Spin and Orbital Angular Momentum

Authors: R. I. Khrapko

According to the standard electrodynamics, a rotating electric dipole emits angular momentum mainly into the equatorial part of space situated near the plane of the rotation where polarization of the radiation is almost linear. Polar regions situated near the axis of rotating are scanty by the angular momentum, although they are intensively illuminated by the almost circularly polarized radiation, which must carries spin angular momentum. A conclusion is made that the electrodynamics sights orbital angular momentum only and overlooks spin. This means that the electrodynamics is not complete. We introduce a spin tensor into the electrodynamics and calculate the whole angular momentum flux radiated by the dipole.

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Submission history

[v1] 25 Mar 2007

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