Hawking–Page phase transition

The Hawking-Page phase transition is a concept from theoretical physics that describes a phase transition between different types of states in a gravitational system, particularly in the context of anti-de Sitter (AdS) space and black holes. In the specific setup considered by Stephen Hawking and Malcolm Page in their seminal work in the early 1990s, they examined a system of black holes and thermal radiation in asymptotically anti-de Sitter space.