Programma

Talk with Marco Barbieri

The Quest for Quantum

Bid farewell to our familiar shores, we are sailing to the world of the quantum! Well, ask no more details, there are many ways in which quantum aspects show up, especially with light. We will briefly review what are the different meanings of the words ‘quantum light’ and how these can be employed.

Talk with Silvia Gentilini

Photonic Ising machine

The most challenging combinatorial optimization problems in science, engineering, and social life can be cast in terms of an Ising model. An introduction to the concept and the advantages of the spatial photonic Ising machines as physical devices designed to accelerate the minimization of Ising Hamiltonians, will be provided.

Talk with Eugenio Fazio

All-optical machine learning within plasmonic and photonic structures using photorefractive plasticity

The research activities of the Smart & NeuroPhotonics Lab of the Department of Fundamental and Applied Sciences for Engineering of Sapienza Università di Roma will be presented, delving into the aspects of all-optical machine learning. In particular, we will show how by exploiting the plasticity of the photorefractive optical nonlinearity it is possible to store information and use it for reasoning. We will illustrate some simple implementations of memories, both photonic and plasmonic, that exploit self-written and self-organised channel waveguides to learn and recognize states and numbers.

Talk with Fabio Sciarrino

Hybrid Photonics Platform for Quantum Information Processing

The development of optical quantum technologies allows for quantum-enhanced metrology, secure quantum communication, and quantum computing and simulation in highly increased dimensions. Maturing quantum photonics requires efficient generation and detection of single photons, as well as their scalable manipulation. We merge highly efficient multi-photon sources and integrated waveguide components. In particular, we interface these scalable platforms, demonstrating high-rate multi-photon interference with a quantum dot based multi-photon source and a reconfigurable photonic chip on glass. 

Talk with Romolo Savo

Second-order nonlinear disorder: easy but deep photonic computing     

The audience will be introduced to second-order nonlinear disorder media and their use as analog processing units for machine learning tasks. In particular, a very recent demonstration of a deep (two-layers), large-scale, optical neural network will be presented, based on a nonlinear disordered multiple-scattering slab of lithium niobate nanocrystals. 

Title with Neda Ghofraniha

Replica Symmetry Breaking in Random Lasers

In 2015 we have demonstrated the occurance of Replica Symmetry Breaking in Random lasers by measuring the Parisi overlap parameter. The results are cited in the motivations of the Nobel Prize in Physiscs to Giorgio Parisi and since then many groups in the world have given evidence of our first observation in numerous different systems.

Specifically, we will show our past investigation and novel outcomes about the complex landscape of out-of-equilibrium random lasers.

Round table Photonics between Artificial Intelligence and Quantum Information 

Tour to the Historical Museum of Physics Enrico Fermi and to the Computational Photonics Laboratory

Workshop