J B Griffiths 1976 J. Phys. A: Math. Gen. 9 1273 doi:10.1088/0305-4470/9/8/016
J B Griffiths
Show affiliationsIn the general theory of relativity electromagnetic waves interact nonlinearly through the field equations. A region of space-time containing two null electromagnetic waves is considered, and a new class of exact solutions of the Einstein-Maxwell equations is given. The solutions describe two waves following shear-free null geodesics 'twisting' through each other with zero contraction, the twist of one wave being proportional to the field strength of the other.
04.40.Nr Einstein-Maxwell spacetimes, spacetimes with fluids, radiation or classical fields
53C22 Geodesics (See also 58E10)
Issue 8 (August 1976)
J B Griffiths 1976 J. Phys. A: Math. Gen. 9 1273
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