Category Archives: Seminars

Alberto Porzio visiting AQM on April 26

Alberto Porzio from the SPIN institute of CNR (Napoli) will be visiting us on Wed 26 April, 2017.

Alberto will deliver a seminar at 12:30 room A5/S2, LITA Building

Encoding and Direct Detection of Continuous Variable Entanglement in the Orbital Angular Momentum Space

CV entangled beams carrying OAM are successfully generated by converting entangled polarization modes into vortex beams. Entanglement is detected by homodyning in the OAM space with the homodyne local oscillator switching between different OAM states.

Tommaso Tufarelli visiting AQM

Tommaso Tufarelli, from University of Nottingham, is visiting AQM from Tuesday 10 to Thursday 12 January.

He will deliver a talk on Wednesday, 11 January at 12:30 in Auletta Ottica Quantistica (5 piano LITA)

Refining the Dicke Model

I will start by reviewing an interesting signature of the “A^2 term” in a simple Dicke model featuring two coupled oscillators [first reported in Phys. Rev. A 91, 063840 (2015)]. Then, I will discuss conditions under which such model could be derived as an approximation to a minimal coupling Hamiltonian in Coulomb-gauge, showing that some additional Hamiltonian terms, not usually discussed in the literature, should be present in the ultrastrong coupling regime.

Andrea Smirne visiting

Andrea Smirne, from Ulm University, will be visiting the Physics Department from Monday, 12 December. He will give a lecture and a talk about quantum parameter estimation.

Monday 12 December, 8.45,  Aula I

Lecture Classical and quantum limits to the achievable precision in parameter estimation

Wednesday 14 December, 13.30, Aula Bonetti

Seminar Overcoming the classical limits for frequency estimation in the presence of a general class of open-system dynamics

Continue reading Andrea Smirne visiting

The Big Bell Test


The BIG Bell Test (BBT) is a worldwide project to bring human unpredictability (randomness) to cutting-edge physics experiments. It may be surprising, but there are aspects of physical reality that can only be understood by asking unpredictable questions of nature. The most famous experiment of this kind is the Bell test. In the BBT, laboratories around the world (see map) will prepare entangled quantum particles: electrons, photons, atoms, and superconductors. Through the Internet, an army of participants, the Bellsters, will shower these particles with unpredictable, high-speed “questions” (measurements, in fact). Together, we will perform unique quantum physics experiments, including the first human-driven Bell test.

The experiments will all take place on Wednesday, November 30th and everyone can contribute by going to the project website and playing the games proposed.

Claudia Benedetti, Marco Genoni and Stefano Olivares from the Applied Quantum Mechanics Group will give an introductory seminar aimed at high-school and university students on Tuesday, November 29th at 14:30 in Aula A of the Physics Department.

Here are the slides of the seminar:
Intro di meccanica quantistica (Olivares)
BIG Bell Test (Benedetti, Genoni)

A blog article on the experiment by Matteo Rossi:

Further material is available on the ICFO website: