The effects of cosmological expansion on quantum bosonic states are investigated, using
quantum information theory. In particular, a generic Bogoliubov transformation of bosonic …

Using spacetime Gaussian test functions, we find closed-form expressions for the smeared
Wightman function, Feynman propagator, retarded and advanced Green's functions, causal …

We investigate the quantum dynamics of a harmonic oscillator (HO) system within the
framework of topologically charged modified Eddington-inspired Born–Infeld (EiBI) gravity …

This study aims to investigate the distribution of distance-based quantum resources for
fermionic fields in curved Schwarzschild spacetime (SST), as well as for bosonic fields in …

In this work we make the connection between the Unruh–DeWitt (UDW) particle detector
model applied to quantum field theory in curved spacetimes and the rigorous construction of …

Pointlike systems coupled to quantum fields are often employed as toy models for
measurements in quantum field theory. In this paper, we identify the field observables …

The effects of cosmological expansion on quantum bosonic states are investigated, using
quantum information theory. In particular, a generic Bogoliubov transformation of bosonic …

We investigate the effects of a gravitational wave background on the coherence degradation
induced by the Unruh effect of a uniformly accelerated single-qubit and quantum …

We develop closed-form expressions for the moments and cumulants of Gaussian states
when measured in the photon-number basis. We express the photon-number moments of a …

A quantum communication protocol between harmonic oscillator detectors, interacting with a
quantum field, is developed in a cosmological expanding background. The aim is to see if …