Hawking's area theorem with a weaker energy condition
arXiv:1711.06480 · doi:10.1007/s10714-018-2377-1
Abstract
Hawking's area theorem is a fundamental result in black hole theory that is universally associated with the null energy condition. That this condition can be weakened is illustrated by the formulation of a strengthened version of the theorem based on an energy condition that allows for violations of the null energy condition. With the semi-classical context in mind, some brief remarks pertaining to the suitability of the area theorem and its energy condition are made.
arXiv admin note: text overlap with arXiv:1510.02099, arXiv:gr-qc/0407042 by other authors