Black holes have presented us with some of the most baffling paradoxes in physics. From
their original conception as dark stars, they have come to be understood as physical …

Abstract We study an Unruh–DeWitt particle detector that is coupled to the proper time
derivative of a real scalar field in 1+ 1 spacetime dimensions. Working within first-order …

A bstract It is recently argued that if the Hawking radiation process is unitary, then a black
hole's mass cannot be monotonically decreasing. We examine the time dependent particle …

The AMPS argument for black hole firewalls seems to arise not only from the assumption of
local effective field theory outside the stretched horizon but also from an overcounting of …

A bstract We investigate a two-level Unruh-DeWitt detector coupled to a massless scalar
field or its proper time derivative in (1+ 1)-dimensional Minkowski spacetime, in a quantum …

A bstract We investigate the possibility of firewalls in the Einstein-dilaton gravity model of
CGHS. We use the results of the numerical simulation carried out by Ashtekar et al. to …

We analyze how preexisting entanglement between two Unruh-DeWitt particle detectors
evolves when one of the detectors falls through a Rindler firewall in (1+ 1)-dimensional …

We show that a particle detector can distinguish the interior of a hollow shell from flat space
for switching times much shorter than the light-crossing time of the shell, even though the …

A bstract We present and utilize a simple formalism for the smooth creation of boundary
conditions within relativistic quantum field theory. We consider a massless scalar field in (1+ …

The black hole firewall conjecture is based on the Page curve hypothesis, which claims that
entanglement between a black hole and its Hawking radiation is almost maximum. Adopting …