The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

This work presents a real-time diagnostic method to monitor and characterize a positron
beam by using a microchannel plate (MCP), a phosphor screen and a CCD camera. We …

We study the interaction between a positron beam in the single-particle regime in an
interferometric configuration and a microwave electromagnetic field. We discuss the …

Nuclear emulsions are a formidable tool for detecting charged particles with sub-micrometric
spatial resolution, a feature which is essential in quantum interferometry experiments with …

We present an interferometric method suitable to measure particle masses and, where
applicable to the particle and its corresponding antiparticle, their mass ratio in order to detect …

The theory of quantum gravity (QG) still eludes us. To start with, it is not even clear if gravity
can be quantized like the rest of the fundamental interactions in Nature. For instance, gravity …

Abstract The Einstein Equivalence Principle (EEP) has never been directly examined with
an antimatter test body. To address this, ALPHA is planning to measure the Earth's …

According to the principle of wave-particle duality, every massive particle has a wavelength
related to its momentum by the Planck constant. This revolutionary concept was one of the …

This thesis describes the research activity I carried out during the 3 years of my PhD. During
this period I have been involved in studies of different nature: from Fundamental Physics to …

The topic of gravitational interactions of antimatter has recently attracted a large interest in
the scientific community. This thesis is inserted in this scenario of fundamental physics. In …