Area-charge inequality for black holes
arXiv:1109.5602 · doi:10.1088/0264-9381/29/3/035013
Abstract
The inequality between area and charge $A\geq 4ÏQ^2$ for dynamical black holes is proved. No symmetry assumption is made and charged matter fields are included. Extensions of this inequality are also proved for regions in the spacetime which are not necessarily black hole boundaries.
21 pages, 2 figures