>PRESENTATION:
• Born in Turin (Italy) Nov. 17 1967
• "laurea" degree 1990 (University of Turin)
• PhD 1994 (University of Turin)
• Worked at CERN (Geneva) 1994-1995, Lyon University (FR) 1995-1996, Grenoble University
• 1996-1998, IENGF since 1998
• Actually permanent researcher at IENGF

Today his activity concerns foundations of quantum mechanics and quantum information.

Quantum properties of the optical field represent a resource of the utmost relevance for the development of quantum technologies, allowing unprecedented results in disciplines ranging from quantum information and metrology to quantum imaging. A very interesting example is offered by the possibility of sub shot noise measurements with quantum optical states In particular a very interesting achievement would derive from the detection of weak objects by exploiting the quantum correlations of parametric down conversion (PDC) emission: a result that could have important practical applications. A little more in detail the principle of this technique is to take advantage of the correlation in the noise of two conjugated branches of PDC emission : in fact, subtracting the noise measured on one branch from the image of a weak object obtained in the other branch, the image of the object, eventually previously hidden in the noise, could be restored [1]. In this talk we will show how we have reached a sub shot noise [2] regime and then improved this result up to reach a regime where it was possible to achieve the first experimental realisation of sub shot noise imaging [3]. [1] Brambilla, E., Caspani, L., Jedrkiewicz, O., Lugiato, L. A. & Gatti, A. Phys. Rev. A 77, 053807 (2008). [2] G. Brida et al., Phys. Rev. Lett. 102, 213602 (2009). [3] G.Brida, M. Genovese, I. Ruo Berchera, Nature Photonics 4, 227 - 230 (2010).