Calendar of Physics Talks Vienna

Large Deviations in the Superstable Weakly Imperfect Bose Gas
Speaker:Jean-Bernard Bru (Mathematische Physik, Univ. Wien) (Fakultät für Physik)
Abstract:im Rahmen des Seminars für Mathematische Physik
Date: Tue, 13.11.2007
Time: 14:15
Duration: 60 min
Location:Kleiner Seminarraum, Boltzmanngasse 5, 5. Stock
Contact:J. Yngvason

Color superconductivity in dense quark matter
Speaker:Andreas Schmitt (Washington U., St. Louis & TU Wien)
Date: Fri, 16.11.2007
Time: 14:15
Location:Inst. f. Theoretische Physik der TU Wien, Wiedner Hauptstr. 8-10, SEM 136, 10th floor
Contact:rebhana {at} tph.tuwien.ac.at

Quantum communication with quantum memory
Speaker:Shuai CHEN (Universität Heidelberg)
Abstract:Atomic ensembles can be used as quantum memory to store the state of photon in a collective single spin excitation. Using different spatial modes one can create atom-photon entanglement where the atomic state can be stored in a quantum memory for more than 20 microseconds. With such an atom-photon entanglement source, the teleportation from a photonic qubit to an atomic qubit is achieved. Furthermore two remote atomic ensembles are entangled via the interference of two photons following an improved "Briegel type" swapping protocol (Bo Zhao et. al., Phys. Rev. Lett. 98, 240502 (2007)). These achievements provide the basic elements for the experimental realization of quantum repeater and new techniques for the long distance quantum communication.
Date: Fri, 16.11.2007
Time: 15:15
Location:Seminarraum, Atominstitut der Österr. Universitäten
Contact:J. Schmiedmayer