Fabio Dell'Anno

Entanglement in neutrino oscillations

Flavor oscillations in elementary particle physics are related to multimode entanglement of single-particle states. We show that mode entanglement can be expressed in terms of flavor transition probabilities, and therefore that single-particle entangled states acquire a precise operational characterization in the context of particle mixing. We treat in detail the physically relevant cases of two- and three-flavor neutrino oscillations, including the effective measure of CP violation. We discuss experimental schemes for the transfer of the quantum information encoded in single-neutrino states to spatially delocalized two-flavor charged-lepton states, thus showing, at least in principle, that single-particle entangled states of neutrino mixing are legitimate physical resources for quantum information tasks.

Hierarchies of geometric entanglement

We introduce a class of generalized geometric measures of entanglement. For pure quantum states of

A field-theoretical approach to entanglement in neutrino mixing and oscillations

N

Flavor entanglement in neutrino oscillations in the wave packet description

elementary subsystems, they are defined as the distances from the sets of

Continuous variable quantum teleportation with sculptured and noisy non-Gaussian resources

K

Tunable non-Gaussian resources for continuous-variable quantum technologies

-separable states (

On entanglement in neutrino mixing and oscillations

K=2,...,N

Entanglement in Quantum Field Theory: particle mixing and oscillations

). The entire set of generalized geometric measures provides a quantification and hierarchical ordering of the different bipartite and multipartite components of the global geometric entanglement, and allows to discriminate among the different contributions. The extended measures are applied to the study of entanglement in different classes of

Multipartite geometric entanglement in finite size XY model

N

Test of Inseparability Criteria for Squeezed Number States of the Radiation Field

-qubit pure states. These classes include