PIRSA:09010039

# Black Hole Information - What's the Problem?

### APA

Hossenfelder, S. (2009). Black Hole Information - What's the Problem?. Perimeter Institute. https://pirsa.org/09010039

### MLA

Hossenfelder, Sabine. Black Hole Information - What's the Problem?. Perimeter Institute, Jan. 24, 2009, https://pirsa.org/09010039

### BibTex

```          @misc{ pirsa_09010039,
doi = {},
url = {https://pirsa.org/09010039},
author = {Hossenfelder, Sabine},
keywords = {Quantum Gravity, Quantum Fields and Strings},
language = {en},
title = {Black Hole Information - What{\textquoteright}s the Problem?},
publisher = {Perimeter Institute},
year = {2009},
month = {jan},
note = {PIRSA:09010039 see, \url{https://pirsa.org}}
}
```

## Abstract

I will classify the options to solve the black hole information loss problem by how radical a departure from semi-classical gravity they require outside the quantum gravitational regime. I will argue that the most plausible and conservative conclusion is that the problem of information loss originates in the presence of the singularity and that thus effort should be focused on understanding its avoidance. A consequence of accepting the accuracy of the semi-classical approximation is the surface interpretation of black hole entropy. I will summarize the arguments that have been raised for and against such scenarios. Reference: http://arxiv.org/abs/0901.3156