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arXiv · 1605.03727

VSI electromagnetic fields

Marcello Ortaggio·Vojtěch Pravda
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Abstract

A $p$-form $F$ is VSI (i.e., all its scalar invariants of arbitrary order vanish) in a $n$-dimensional spacetime if and only if it is of type N, its multiple null direction $l$ is "degenerate Kundt", and $£_{l}F=0$. This recent result is reviewed in the present contribution and its main consequences are summarized. In particular, a subset of VSI Maxwell fields possesses a universal property, i.e., they also solve (virtually) any generalized (non-linear and with higher derivatives) electrodynamics, possibly also coupled to Einstein's gravity.

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Marcello Ortaggio, Vojtěch Pravda. 2016-05-12. VSI electromagnetic fields. https://doi.org/10.1142/9789813226609_0307

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