This report deals with the quantum field theory of particle oscillations in vacuum. We first
review the various controversies regarding quantum-mechanical derivations of the …

We review some of the main results of the quantum field theoretical approach to neutrino
mixing and oscillations. We show that the quantum field theoretical framework, where flavor …

It was shown that the particle distribution detected by a uniformly accelerated observer in the
inertial vacuum (Unruh effect) deviates from the pure Planckian spectrum when considering …

Quantum correlations provide a fertile testing ground for investigating fundamental aspects
of quantum physics in various systems, especially in the case of relativistic (elementary) …

We consider the quantum field theoretical formulation of boson field mixing and obtain the
exact oscillation formula. This formula does not depend on arbitrary mass parameters. We …

We analyze the problem of neutrino oscillations via a fermionic particle detector model
inspired by the physics of the Fermi theory of weak interactions. The model naturally leads to …

We study in detail the quantum field theory of mixing among three generations of Dirac
fermions (neutrinos). We construct the Hilbert space for the flavor fields and determine the …

The possibility of constructing the Hilbert space of definite flavor neutrino states, especially a
one-flavor neutrino state, is investigated in the theory with flavor-mixing mass terms in the …

We examine the general structure of the formulas of neutrino oscillations proposed by
Blasone and Vitiello (BV). Reconstructing their formulas with the retarded propagators of the …

We show that the non-perturbative vacuum structure associated with neutrino mixing leads
to a non-zero contribution to the value of the cosmological constant. Such a contribution …