The Page curve is reproduced from within semiclassical gravity

Assembled from 39 blocks · 1 evidence · 17 related

1. Story
2. Independent groups showed that including previously neglected saddle points in the gravitational path integral - configurations that came to be described as replica wormholes, with the resulting prescription known as the island formula - yields an entanglement entropy for the radiation that follows the Page curve rather than rising forever. It is widely regarded as the most significant development on the information problem since it was posed. It is not a resolution: the calculation tells you what the entropy does without identifying the mechanism by which information leaves, and the physical interpretation is disputed.
3. Knowledge
4. Hawking radiation
5. Black hole entropy
6. The black hole information paradox
7. Hawking argues that information is destroyed
8. The Page curve is reproduced from within semiclassical gravity
9. Connections
10. Hawking argues that information is destroyed
11. The black hole information paradox
12. Black hole entropy
13. Hawking radiation
14. The black hole information paradox
15. Stephen Hawking
16. Hawking radiation
17. The no-hair result
18. The Page curve is reproduced from within semiclassical gravity
19. Hawking radiation
20. The no-hair result
21. Hawking argues that information is destroyed
22. Page states what unitarity requires of the radiation
23. Hawking concedes the information bet
24. The Page curve is reproduced from within semiclassical gravity
25. The event horizon
26. Jacob Bekenstein
27. Hawking radiation
28. Bekenstein assigns entropy to a black hole
29. Hawking shows that black holes radiate
30. Page states what unitarity requires of the radiation
31. The Page curve is reproduced from within semiclassical gravity
32. Stephen Hawking
33. Black hole entropy
34. The black hole information paradox
35. Hawking shows that black holes radiate
36. Hawking argues that information is destroyed
37. The Page curve is reproduced from within semiclassical gravity
38. Evidence
39. States the entanglement-entropy behaviour that unitary evaporation requires, now known as the Page curve. V55 VERIFICATION BASIS: not consulted in session; no research tool was available. Volume and page are from recall and must be checked. The 2019-2020 island and replica-wormhole papers that reproduce this curve are deliberately NOT cited anywhere in this pack, because their authors and venues could not be confirmed.