Entropy of the Information Retrieved from Black Holes

Understand

The retrieval of black hole information was recently presented in two interesting proposals in the 'Hawking Radiation' conference: a revised version by G.

• 't Hooft of a proposal he initially suggested 20 years ago and, a new proposal by S.
• Hawking.
• Both proposals address the problem of black hole information loss at the classical level and derive an expression for the scattering matrix.