The entropy of Hawking radiation

🤖 Plain-English Summary

In this review, we describe recent progress on the black hole information problem that involves a new understanding of how to calculate the entropy of Hawking radiation. We show how the method for computing gravitational fine-grained entropy, developed over the past 15 years, can be extended to capture the entropy of Hawking radiation.

🔑 Key Findings

• We show how the method for computing gravitational fine-grained entropy, developed over the past 15 years, can be extended to capture the entropy of Hawking radiation.
• Additionally, this technique reveals large corrections needed for the entropy to be consistent with unitary black hole evaporation.

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