Page curves for a family of exactly solvable evaporating black holes

Understand

We study the entanglement entropy of a one-parameter family of exactly solvable gravities in the 2-dimensional asymptotically-flat space.

• The islands and Page curves of eternal, evaporating and bath-removed black holes are investigated.
• The different theories in this parameter class are identified through field redefinitions which leave the island invariant.
• The Page transition is found to occur at the first a third of the black hole life time in the evaporating case for this family of solutions.