A four-dimensional regularization of Lovelock–Lanczos gravity up to an arbitrary curvature
order is considered. We show that Lovelock–Lanczos terms can provide a non-trivial …

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 …

Particle detector models such as the Unruh–deWitt detector are widely used in relativistic
quantum information and field theory to probe the global features of spacetime and quantum …

We investigate particle production à la the Schwinger mechanism in an expanding, flat de
Sitter patch as is relevant for the inflationary epoch of our Universe. Defining states and …

We analyze the response and thermal behavior of an Unruh-DeWitt detector as it travels
through cosmological spacetimes, with special reference to the question of how to define …

We present a generalization of the Hawking effect for dynamical trapping horizons by
calculating the tunneling rate in the Hamilton–Jacobi formalism. It turns out that all horizons …

One perceives same response of a single-atom detector when placed at a point outside the
horizon in Schwarzschild spacetime to that of a static single-atom detector in thermal …

We discuss a quantum field theoretical approach, in which a quantum probe is used to
investigate the properties of generic non-flat FLRW space-times. The probe is identified with …

An effective Lagrangian approach, partly inspired by Quantum Loop Cosmology (QLC), is
presented and formulated in a non flat FLRW space–times, making use of modified …

The regularized vacuum fluctuation related to a conformally coupled massless scalar field
defined on a space-time with dynamical horizon is computed with respect a radially moving …