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Engineering quantum photonic systems

Date Do, 28.03.2013 - Do, 28.03.2013
Time 10.15
Speaker Dr. Rob Thew, Quantum Photonics and Quantum Communication Group, University of Geneva
Location Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern
Program Single photons, photon pair (spontaneous parametric down-conversion) sources and nonlinear interactions (sum- frequency and difference frequency generation) have provided key enabling technologies for quantum communication over the past 20 years or so. However, interest in these technologies is becoming more widespread as the complexity of these systems increases, i.e. for large scale quantum networks such as quantum repeaters and distributed computing or simulations, as well as for quantum metrology. I will focus on the experimental aspects of our work on engineering photonic states using these nonlinear interactions, in particular: for heralded photon sources, nonlinear interactions between single photons: how we can amplify single photon quantum states without violating the no-cloning theorem, and finally look at amplifying entangled quantum states into the macroscopic regime.
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