We develop a general formalism for a nonperturbative treatment of harmonic-oscillator
particle detectors in relativistic quantum field theory using continuous-variable techniques …

We consider quantum signaling between two-level quantum systems in a cavity in the
perturbative regime of the earliest possible arrival times of the signal. We present two main …

It is well known that the vacuum state of a quantum field is spatially entangled. This is true in
both free and confined spaces, for example, in an optical cavity. The obvious consequence …

We present a theoretical study of a one-photon wave packet scattered by two atoms in a one-
dimensional waveguide. We investigate the role of terms beyond the rotating-wave …

We analyze the entanglement generation of a system composed of two decoupled rotated
graphene layers inside a planar microcavity. By considering the electromagnetic field of the …

We revisit the Fermi two-atom problem in the framework of disordered systems. In our model,
we consider a two-qubit system linearly coupled with a quantum massless scalar field. We …

In this thesis we examine a variety of question regarding several quantum information-
theoretic concepts as they manifest in the context of relativistic quantum fields. In particular …

We present a theoretical study of one photon wave-packet scattered by two atoms in one
dimensional waveguide, stressing on both the spectral and the temporal behavior. Rotating …

Classical Information Theory has been one of the most important pillars in the development
of current information and communication technologies. Originally developed by Harry …