Speaker
Description
We consider the transition rate of a static Unruh-DeWitt particle detector in a variety of spacetimes built out of quotients of $\text{AdS}_3$ spacetime. In particular, we contrast the behavior of a Unruh-DeWitt detector interacting with a quantum scalar field in the $\mathbb{R}\text{P}^{2}$ geon spacetime and a spacetime constructed by Aminneborg et al. The Wightman functions of these spacetimes are obtained using the method of images. We find a number of features that distinguish the two spacetimes, which are identical outside of the black hole's event horizon, most notably, in the response functions of gapless detectors in the sharp-switching limit. This points to a way in which the interior topology of a black hole may be discerned by an external observer.
| Keyword-1 | Quantum Fields |
|---|---|
| Keyword-2 | Black Hole |
| Keyword-3 | Particle Detector |
