Gauge-invariant magnetic charges in linearised gravity
arXiv:2405.08876
Abstract
Linearised gravity has magnetic charges carried by (linearised) Kaluza-Klein monopoles. A gauge-invariant expression is found for these charges that is similar to Penrose's gauge-invariant expression for the ADM charges. A systematic search is made for other gauge-invariant charges.
47 pages. v2: minor revisions. v3: fixed typographical error