We consider a quantum Otto engine using an Unruh-DeWitt particle detector model which
interacts with a quantum scalar field in curved spacetime. We express a generic condition for …

It is a well-known fact that, in recent times, entanglement harvesting from the quantum field is
being rigorously investigated further in flat and different curved backgrounds. The usually …

A bstract In this study, we carry out a non-perturbative approach to a quantum Otto engine,
employing an Unruh-DeWitt particle detector to extract work from a quantum Klein-Gordon …

A bstract It is well-known that the (1+ 1) dimensional Schwarzschild and spatially flat FLRW
spacetimes are conformally flat. This work examines entanglement harvesting from the …

We revisit the mathematics of exactly solvable Unruh-DeWitt detector models, interacting
with massless scalar fields under instantaneous interactions, to construct a relativistic …

A bstract We introduce a new model of relativistic quantum analogue of the classical Otto
engine in the presence of a perfectly reflecting boundary. A single qubit acts as the working …

This work considers two Unruh-DeWitt detectors interacting with a massless, minimally
coupled scalar field in a $(1+ 1) $ dimensional Reissner-Nordström black hole spacetime. In …

We study the finite time response of an Unruh–DeWitt particle detector described by a qubit
(two-level system) moving with uniform constant acceleration in maximally symmetric …

Abstract We consider two Unruh-DeWitt detectors interacting with a massless, minimally
coupled scalar field in a\((1+ 1)\) dimensional Reissner-Nordström black hole spacetime. In …

We take advantage of the gravitational redshift experienced by a photon propagating in
curved spacetime in order to construct a quantum Otto refrigeration cycle. Deriving a lower …