Open Problems in Quantum Mechanics

Sessione

Part II

20 giu 2012, 14:30

Aula Conversi (Laboratori Nazionali di Frascati)

9. Signatures of non-Markovianity in open-system dynamics

Andrea Smirne (MI)

20/06/12, 14:30

In recent research, a great effort has been put into the study and understanding of non-Markovian features within the dynamics of open quantum systems. At the same time, quantum non-Markovianity has been defined and quantified in terms of quantum dynamical maps, using either a divisibility property or the behavior of the trace distance between pairs of reduced states evolved from different...

10. The collapse of the wavefunction and the origin of cosmic seeds

Dr. Gabriel Leon (University of Trieste)

20/06/12, 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...

11. Testing gravity with atom interferometry

Guglielmo Maria Tino (FI)

20/06/12, 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...

12. Transition-Edge Sensors in Quantum Land

Dr. Emanuele Taralli (INRIM)

20/06/12, 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,...

13. Stochastic Schroedinger equations and non-Markovian open quantum systems with dissipation

Luca Ferialdi (TS)

20/06/12, 16:50

Stochastic Schroedinger equations (SSEs) are a powerful mathematical formalism which allow for insight into physical systems, like e.g. collapse models.These equations can also be used to study open quantum systems, since they allow for a stochastic unravelling, where the environment is described by a noise. The advantage of this approach is that it allows for analytic treatment of...