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.

Monografia su Fermi a cura di Stefano Olivares con il Corriere

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Stefano Olivares, dell’Applied Quantum Mechanics Group, è curatore, con Lanfranco Belloni,  della monografia Fermi. L’energia atomica, secondo volume della collana Grandangolo Scienza, in edicola da mercoledì 8 novembre con il Corriere della Sera e la Gazzetta dello Sport.

Il libro ricostruisce il percorso che portò il brillante scienziato alla conquista del premio Nobel per la Fisica, nel 1938, con acquisizioni di portata sensazionale: l’equazione della statistica delle particelle Fermi-Dirac; la formulazione della teoria del decadimento beta e l’introduzione di una terza forza in natura (oltre alla gravità e alla forza elettromagnetica), la cosiddetta interazione debole, che si manifesta a livello nucleare; la scoperta della possibilità di ottenere reazioni nucleari utilizzando i neutroni lenti. Poi venne il trasferimento di Fermi in America, dove progettò e costruì la prima pila atomica.

Segnaliamo inoltre la prossima uscita della collana, Planck. La rivoluzione quantistica, anch’essa a cura di Stefano e Lanfranco, disponibile in edicola da mercoledì 16 novembre.

Thanks Rodolfo

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Rodolfo Bonifacio has died aged 76 on November 1st, 2016.

Rodolfo graduated in 1964 at the University of Milan, where he became full professor in 1981.

Rodolfo is well known in quantum optics for having developed the theory of optical bistability together with Luigi Lugiato and, together with Tito Arecchi, the so-called Maxwell-Bloch equations for the evolution of a two-level atom in an optical resonator.

Rodolfo and Giuliano Preparata also studied the spontaneous emission from a collection of two-level systems interacting with the quantised electromagnetic field, showing for the first time the coherence of the emitted radiation.

Rodolfo received the Michelson Medal in 1987 and the Einstein Medal in 1994. He taught quantum mechanics to many generations of students, trying to be (using his own words) “vigorous” rather than “rigourous” and putting an emphasis on the applicative aspects of the theory.

He was instrumental to the development of the Applied Quantum Mechanics group at the beginning of the century, tenaciously insisting to have new positions for the emerging field of quantum information processing.

Thanks Rodolfo, R. I. P.

PhD Seminars 2016

Here the calendar of PhD seminars 2016.

First-year students will present their research work during the PhD student Workshop on October 20 in Aula Consiglio.

Francesco Albarelli: Nonclassicality in continuous variables quantum systems.

Luigi Seveso: Ultimate precision: new developments in quantum estimation theory.

Giacomo Tanzi Marlotti: How to analyse condensed matter with Positronium.

The other students will give seminars in room A5/S2, fifth floor, LITA building.

Thursday, October 6, 13:00
Jacopo TrapaniOptimized protocols for discrimination of collective decoherence with classical environment

Thursday, October 6, 13:30
Matteo RossiProbing the diamagnetic term in light-matter interaction

Friday, November 18, 10:15
Giacomo Guarnieri: Characterization of heat in non-Markovian open quantum systems

and non-Markovian quantum jumps. Seminar about the 51th Winter School of Theoretical Physics (Ladek Zdroj)

Zeudi Mazzotta: Ps spectroscopy in the AEGIS experiment: a spectral analysis

and Applications of lasers in Medicine and Life Sciences, seminar about the school  LAMELIS – Advanced summer school on Lasers in Medicine and Life Sciences (Szeged, Hungary)

Talk by Matteo Brunelli on Tue, Oct 25

Matteo Brunelli (Queen’s University Belfast) will be visiting us from 24 to 28 October 2016.

He will give a talk on Tuesday 25 October at 12 am in Aula Ottica Quantistica (A5/S2), 5th floor, LITA building, entitled:

Irreversibility and correlations in mesoscopic quantum systems: an optomechanical route

Abstract

In this talk I will present a theoretical framework to assess the degree of irreversibility of a dissipative process acting on an interacting quantum system. In particular, the entropy production rate of coupled quantum harmonic oscillators can be expressed in a simple form. I will apply the result to the analysis of the optomechanical interaction between a nano-mechanical resonator and a cavity field, and show the agreement between the predictions of our framework and experimental data.  In the second part, I will present a quantitative relation between the entropy production rate and the correlations, both total and quantum, built between the mechanical resonator and the cavity field.

Tony Apollaro joins AQM

Tony Apollaro joined our group on October, 1st with a post-doc position, funded by the QuProCS project (EU PROACTIVE H2020).

Tony obtained his PhD in Physics in 2006 from University of Calabria. Before joining AQM he has been a post-doc fellow at the Department of Physics of the University of Calabria.

Welcome Tony and keep up the good work!

Salvatore Lorenzo joins AQM

Salvatore Lorenzo joined our group on July, 1st with a post-doc position, funded by the QuProCS project (EU PROACTIVE H2020).

Tore obtained his PhD in Quantum Physics & Technology in 2013 from University of Calabria. Before joining AQM he has been a post-doc fellow at the Department of Physics of the University of Palermo.

Welcome Lorenzo and keep up the good work!