Titolo
Un nettare per curare l’Alzheimer: la fisica nucleare in soccorso
all’invecchiamento globale.

Relatori
N.Protti, V.Pascali

Titolo
Una proposta per l'insegnamento della meccanica quantistica.

Relatore
G.Introzzi

Titolo
SUPERQUARK: viaggio al centro del nucleo.

Relatori
S.Venturini, M.Cerutti, L.Rossi

Titolo
Quantum computing. Dagli algoritmi all'intelligenza artificiale: sfide e promesse di una tecnologia emergente.

Relatori
F.Scala, S.Roncallo

The Beam Dump eXperiment is a state of the art, modern beam dump experiment approved by JLab PAC with maximum scientific rate. BDX aims to detect light dark matter particles in the interaction of the intense 11 GeV CEBAF electron beam with the dump of experimental Hall-A. In this contribution I will show the genesis of the experiment and its evolution  toward a pilot run we just concluded at Jlab (BDX-MINI). The physics case, as well as the experimental technique (simulation framework, detector design and prototyping), will be review and discussed.
 

Many astrophysical observations as well as anomalies in processes involving electromagnetic currents (e.g. the muon anomalous magnetic moment) could be reconciled assuming the existence of a new kind of matter, not directly interacting with light, called Dark Matter (DM). While gravitational effects of DM are quite well established, despite the tremendous efforts being devoted to reveal the nature of DM in terms of new elementary particles, no clear results have been obtained so far. Many experimental efforts are dedicated to direct detection of galactic DM, as well as to study the indirect effects of its presence. Due to the lack of results by ‘traditional’ DM searches, in the last few years the experimental activity extended to search for hints of DM produced at accelerators. Technological advances allow nowadays running high intensity  beams of moderate energy well suited for these studies. According to some theories beyond the Standard Model (SM) Light Dark Matter (LDM ) (1-1000 MeV) can interact with SM matter via a new force, mediated by a heavy vector boson called A’ or ‘heavy photon’. Depending on the relative masses of the A’ and the DM particles, the A’ can decay to SM particles (‘visible’ decay) and/or to light DM states (‘invisible’ decay). In this talk, I will give an overview of the LDM physics, focusing on the current experimental effort in the field.
 

We will discuss some newly found solutions to the full massless semiclassical Einstein equation (SCE) in a cosmological setting (Λ=0).

After a short introduction to the relevant notions we present the SCE in a particular shape which allows for the construction of a Minkowski-vacuum-like states. In this setting, solving the SCE breaks down into solving a certain ODE which can be approached numerically and, at least generically, we obtain solutions that well fit physical expectations. Moreover, these solutions indicate dark energy as a quantum effect on cosmological metrics and, since in our model m=Λ=0, this may not be traced back to the usual, obvious dark-energy/cosmological constant effect of a quantum field. Also we will shortly discuss some more physical problems that can be solved by our model. To close the talk, we will briefly speak about de Sitter solutions of the model and thereby foreshadow another talk taking place at the University of Genova later in the week.

In this talk I will give a description of the boundary structure of 3 + 1-dimensional gravity (in the Palatini–Cartan formalism) coupled to to gauge (Yang–Mills) and matter (scalar and spinorial) fields through the use of the Kijowski–Tulczijew construction. In particular, the reduced phase space is obtained as the reduction of a symplectic space by some first class constraints. Furthermore, if time permits I will give a cohomological description (BFV) of it. This is a joint work with A. S. Cattaneo and F. Fila-Robattino.

In this set of lectures we consider the different types of interpretations that have been considered for physical theories in general, and sketch out a variety of interpretations of quantum mechanics and their problems, including “textbook” quantum mechanics, issues of local causality and signal locality, Copenhagen quantum mechanics, operationalist quantum mechanics, some issues with hidden variable theories in general, Bohm-deBroglie quantum mechanics, consistent histories quantum mechanics, many worlds quantum mechanics, Qbism, and perhaps a few more (or a few less!) as time permits. 

Nanostructured plasmonic materials can be designed to tailor and enhance electromagnetic fields at the nanoscale, thus opening new perspectives in flat optics, nanoscale emitters, highly precise nanosensors etc. Moreover, asymmetric plasmonic layers break the symmetry of light-matter interaction, thus offering chiro-optical properties. We first show numerical approaches where the chirality at the nanoscale can be designed; we specially focus on designs that can be fabricated at low cost. For the characterization of chiro-optical behaviour, we use both conventional and unconventional characterization techniques. The first ones involve transmission/reflection measurements of the circularly polarized input or output, with oblique incidence and sample rotation degrees of freedom. However, for direct measurements of chirality-controlled absorption in nanostructures, we rely on unconventional characterization by means of photothermal effects.

Work done in collaboration with A. Belardini, G. Leahu, R. Li Voti, and C. Sibilia