Methodological treatment of global idealizations in Hawking radiation

Ascertain how best to treat idealizations that (i) alter the global spacetime structure of entire physical evolutions and (ii) may employ models that are not consistent with the semi‑classical Einstein equation, in the context of deriving Hawking radiation.

Background

The paper identifies two unusual features of the idealization at issue: it idealizes entire global histories rather than local details, and it may not respect the relevant semi‑classical laws. These features complicate standard philosophical accounts of idealization.

Resolving how such idealizations should be handled is presented as crucial for understanding both the derivations and the nature of Hawking radiation.