Dr
Catalina Oana Curceanu
(LNF),
Umberto Dosselli
(PD)
20/06/2012, 10:30
Dr
Stefano Olivares
(Dipartimento di Fisica - Universita' degli Studi di Milano)
20/06/2012, 10:45
The measurement problem for the optical phase has been traditionally attacked for noiseless schemes or in the presence of amplitude or detection noise. In this presentation we address, both theoretically and experimentally, the estimation of a a phase shift in the presence of phase diffusion and, in particular, of large phase diffusion. We present a nearly optimal interferometric scheme based...
Prof.
FRANCESCO DE MARTINI
(Accademia dei Lincei)
20/06/2012, 11:35
Since the 1935 proposal by Einstein Podolsky and Rosen the riddle of quantum nonlocality, today demonstrated by innumerable experiments, has been a cause of concern and confusion within the debate over the foundations of quantum mechanics. The talk tackles the problem by a non relativistic approach based on the Weyl's conformal differential geometry applied to the Hamilton-Jacobi solution of...
Dr
Jyrki Piilo
(Turku Centre for Quantum Physics, University of Turku, Finland)
20/06/2012, 12:05
We present non-Markovian quantum jump description of open system dynamics and discuss how this describes quantum memory effects. Furthermore, we show how to quantify non-Markovianity of open system with a trace distance based measure and information flow concluding with some experimental applications.
Dr
ward struyve
(university of leuven)
20/06/2012, 12:35
Semi-classical approximations to quantum theory describe part of the system classically and part quantum mechanically. In the usual approach, one considers the classical system to move under a mean force, obtained by averaging over the quantum system. We consider an alternative approach based on de Broglie-Bohm theory. This approach has shown to yield better results than the mean force...
Dr
Gabriel Leon
(University of Trieste)
20/06/2012, 15:00
The quantum fluctuations of the inflationary field are currentlyconsidered as the seeds for cosmic structure and their traces are observed in the cosmic radiation background. However, this paradigm faces a conceptual difficulty in that the proposal does not contain any mechanism capable of breaking the homogeneity and isotropy characterizing the primordial (quantum) state of the...
Guglielmo Maria Tino
(FI)
20/06/2012, 15:30
G. M. Tino
Dipartimento di Fisica e Astronomia and LENS Laboratory
Università degli Studi di Firenze
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
via Sansone 1, Sesto Fiorentino (Firenze), Italy
E-mail: guglielmo.tino@fi.infn.it
I will discuss experiments we are conducting using cold atom interferometry for precision tests of gravitational physics. In particular, I will...
Dr
Emanuele Taralli
(INRIM)
20/06/2012, 16:20
During the last years, Transition-Edge Sensors (TESs) have found an ever more growing number of applications as single photon number resolving detectors in fields as quantum optics [1][2], telecommunication [3][4][5], quantum metrology [6][7][8] and quantum technologies [9].
The most important TES characteristics for the quantum land's inhabitant are the negligible numbers of dark-counts,...
Mr
Nicola Vona
(LMU Munich)
21/06/2012, 09:30
Although time measurements are very often performed in experiments, their theoretical description is largely unclear. Several proposals have been put forward, two of which will be presented in this talk: the one resulting from the application of the orthodox quantum formalism, and that corresponding to the use of Bohmian Mechanics. A situation in which these two approaches lead to different...
Dr
Ivano Ruo Berchera
(INRIM)
21/06/2012, 10:30
The discrimination between quantum and classical states, besides its very important and deep conceptual relevance, has also recently received much attention due to the development of quantum technologies. On one side, it represents a fundamental point for the studies concerning the transition between quantum and classical world, one of the most intriguing research sectors in the foundations of...
Dr
XAVIER ORIOLS
(UNIVERSITAT AUTONOMA DE BARCELONA)
21/06/2012, 12:00
X.Oriols, F. L.Traversa, G. Albareda
Departament d’ Enginyeria Electronica, Universitat Autonoma de Barcelona, 08193, Bellaterra, SPAIN
Electronic industry is pushing devices into the few-nanometer (mesoscopic) limit, where mainly pure quantum e_ects determine the current owing through them. However, the accurate prediction of their multi-time current correlations is a very challenging...
Antonio Di Domenico
(ROMA1)
21/06/2012, 14:30
The neutral kaon doublet is one of the most intriguing systems in nature. Entangled pairs of neutral K mesons produced in ? decays offers a unique possibility to perform very precise tests of fundamental discrete symmetries in nature, as well as of basic principles of quantum mechanics. The most recent results will be reviewed and perspectives in the field will be discussed.
Dr
FABIO SCIARRINO
(Dipartimento di fisica)
21/06/2012, 15:30
Quantum communication employs the counter-intuitive features of quantum physics to perform tasks that are impossible in the classical world. It is crucial for testing the foundations of quantum theory and promises to revolutionize our information and communication technologies. However, for two or more parties to execute even the simplest quantum transmission, they must establish, and...
Ms
Sandra Eibenberger
(VCQ, University of Vienna)
21/06/2012, 16:20
Sandra Eibenberger1,*, Stefan Gerlich1, Jens Tüxen², Marcel Mayor²,³, and Markus Arndt1
1. Vienna Center for Quantum Science and Technology, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
2. Department of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland
3. Karlsruhe Institute of Technology (KIT), Institute for Nanotechnology, P.O. Box 3640,...
Prof.
Klaus Hornberger
(University of Duisburg-Essen)
22/06/2012, 10:00
Can one understand the emergence of classical physics in a quantum mechanical framework? An important step to answer this question is to explain the origin ofsuper-selection rules observed at macroscopic scales. Two specific cases will be discussed, based on microscopically realistic master equations. In the first part, I will show how the distinction and stability of chiral molecular...
Dr
marco genovese
(INRIM)
22/06/2012, 10:30
M.Genovese,1 G. Brida, 1 I. P.Degiovanni, 1 A.Meda, 1 S.Olivares, 2 M.G. A. Paris 2
1 INRIM, Strada delle Cacce 91, I-10135 Torino,Italy
2 Dipartimento di Fisica, Universit`adegliStudi di Milano, I-20133 Milano, Italy
Optical correlations at the quantum level represent a resource for the development of technologies overcoming the limits of the classical physics, with very promising...
