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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.

That’s the story – The last original voice from the Manhattan project

The AQM  and Quantum Technology Lab of Università degli Studi di Milano are proud to present the projection of the documentary That’s the story – The last original voice from the Manhattan project, an interview to Roy Glauber, Nobel Prize in 2005 and last surviving member of the theory division of the Manhattan Project.

The projection (in English, 52 min, Italian subtitles) will take place on March 22, 2017, at 14:30 at the Auditorium “Mario Attilio Levi”, via Valvassori Peroni, 21 (Milano).

The executive producer, Prof. Josè I. Latorre, will introduce the documentary.

Congrats to Jacopo and Zeudi!

On January 19th, 2016 our PhD students Jacopo Trapani and Zeudi Mazzotta defended their theses and obtained their PhD degree from the University of Milan.

Jacopo’s thesis is on Stochastic noise approach to non-Markovian decoherence in continuous variable open quantum systems, while Zeudi’s is on Positronium laser excitation in the AEgIS experiment.

We congratulate with Jacopo and Zeudi for their important achievement and we wish them all the best for their future. Well done guys!!

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

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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:
https://www.tomshw.it/big-bell-test-la-meccanica-quantistica-ha-bisogno-di-voi-81653

Further material is available on the ICFO website:
http://outreach.icfo.eu/media/upload//arxius/BBT/quantum_eng.pdf

Planck. La rivoluzione quantistica, in edicola con il Corriere

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Da oggi, 16 novembre, è disponibile in edicola con il Corriere della Sera e la Gazzetta dello Sport la terza monografia della collana Grandangolo Scienza, intitolata Planck. La rivoluzione quantistica.

Il libro, a cura di Stefano Olivares, dell’Applied Quantum Mechanics Group, e Lanfranco Belloni,  affronta la vita scientifica del fisico tedesco Max Planck, che nel 1900 diede inizio alla rivoluzione della meccanica quantistica formulando l’ipotesi che gli scambi di energia tra radiazione e materia avvenissero in forma discreta e non continua. Per questo contributo fondamentale allo sviluppo della fisica moderna fu insignito del premio Nobel nel 1918 e il suo nome è accostato a una delle costanti fondamentali della fisica.