Monografia su Fermi a cura di Stefano Olivares con il Corriere

Fermi Fermi_back

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


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


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!

Steve Campbell talk on Thu, July 21

Next week Steve Campbell from Queen’s University Belfast will be visiting AQM. He will give a talk on Thursday, July 21, 14.00 at Aula Ottica Quantistica (5 piano LITA).

The cost of achieving finite time adiabatic dynamics

Recent years have witnessed a surge of interest in the study of thermal nanomachines that are capable of converting disordered forms of energy, such as heat, into useful work. It has been shown for both classical and quantum systems that external drivings can allow a system to evolve adiabatically even when driven in finite time, such techniques are commonly known as shortcuts to adiabaticity (STA) [1].

It was suggested to use such external drivings to render the unitary processes of a thermodynamic cycle quantum adiabatic, while being performed in finite time [2]. This could considerably augment the performance of nano-thermodynamic engines as work exchanges are extremised by adiabatic protocols. However, implementing additional external driving requires resources which affect the overall performance of the system [3].

We analyse the implications of considering the necessary power in applying these STA subsequently showing that this cost may outweigh the possible gains in work extraction for slow enough processes due to the relative degree of adiabaticity in the dynamics, while for relatively faster processes, the use STA can improve the work exchange. Furthermore, we devise a general strategy that exploits the definition of work as a two-time measurement of energy to improve the performance of work transfer. In particular, we show that it is possible to achieve sizable energy savings by gathering information from the first measurement and then applying a specifically tailored driving to the protocol. We apply our framework to driving a critical many-body system through a quantum phase transition, where the closing of the energy gap at the critical point makes the driving Hamiltonian of increasing complexity [4] and show that this complexity necessitates a divergence in the cost of achieving finite time adiabatic dynamics.


[1] Shortcuts to adiabaticity, E. Torrontegui, S. Ibáñez, S. Martínez-Garaot, M. Modugno, A. del Campo, D. Guéry-Odelin, A. Ruschhaupt, Xi Chen, and J. G. Muga, Adv. At. Mol. Opt. Phys. 62, 117-169 (2013).

[2] More bang for your buck: Towards super-adiabatic quantum engines, A. del Campo, J. Goold, and M. Paternostro, Sci. Rep. 4, 6208 (2014).

[3] Cost of transitionless driving and work output, Yuanjian Zheng, Steve Campbell, Gabriele De Chiara, and Dario Poletti, arXiv:1509.01882.

[4] Shortcut to Adiabaticity in the Lipkin-Meshkov-Glick Model, S. Campbell, G. De Chiara, M. Paternostro, G. M. Palma, and R. Fazio, Phys. Rev. Lett. 114, 177206 (2015).

Marco Genoni joins AQM

Marco Genoni joins AQM as an Early-Stage Researcher within the EU project ConAQuMe (Marie Skłodowska-Curie Action H2020-MSCA-IF-2015.

Congratulations to Marco and welcome aboard!