Calendar of Physics Talks Vienna

Seiberg duality and generalizations of the Verlinde algebra

The quest for the Higgs boson at the LHC

Speaker:	Jim Virdee (Imperial College London and CERN)
Abstract:	In July 2012 ATLAS and CMS experiments reported the discovery of a Higgs-like boson, most likely confirming the mechanism for generation of mass of fundamental particles put forward in the 1960's. The physics behind this mechanism will be discussed drawing analogy with other physical phenomena. An outline of the challenges faced during the construction of both the LHC and the experiments will be presented as well as an overview of the operation and performance during the first run. Selected physics results and future aims, in particular those relating to the discovery of the Higgs-like boson, will be discussed.
Date:	Mon, 06.05.2013
Time:	17:30
Duration:	60 min
Location:	Lise Meitner Hörsaal, Univ. Wien, Strudlhofgasse 4/1. Stock, 1090 Wien
Contact:	Anton Rebhan

Kinetic models of ultrarelativistic heavy ion collisions

Speaker:	Maximilian Attems (FIAS)
Abstract:	Ultrarelativistic heavy ion collision experiments probe strongly interacting matter under extreme conditions. The theory of the strong interaction quantum chromodynamics (QCD) predicts the creation of a Quark-Gluon Plasma (QGP) in such collisions. The theoretical description of the QGP dynamical evolution requires a wide range of tools. The initial condition of the nuclei before the collision as well as the gluon dynamics right after the collision is governed by Yang-Mills dynamics. Soon after the collision the system reaches local equilibrium and hydrodynamics describes the expansion. As the system gets more dilute, hadronic kinetic theory models become applicable. Progress on studies of the non-Abelian plasma instabilities for early stage dynamics and first results from a new pion gas implementation will be presented.
Date:	Tue, 07.05.2013
Time:	12:30
Duration:	60 min
Location:	Univ. of Vienna, Faculty of Physics, Boltzmanngasse 5, 5th floor, Erwin Schrödinger Lecture Hall
Contact:	Philipp Köhler, Albert Georg Passegger - www.univie.ac.at/lunch-seminar

Entanglement generation in semiconductors: The case of microcavity polaritons

Speaker:	Stefano Portolan (Vienna University of Technology, Institute of Atomic and Subatomic Physics)
Abstract:	Entanglement is considered the primary resource for quantum information processing schemes. Conventionally, entangled photon pairs (EPPs) are produced by parametric down conversion in nonlinear crystals or four-wave mixing in photonic crystal fibers. Solid state systems like exciton polaritons in microcavities offer an intriguing alternative with the prospect of building highly efficient EPP sources on a miniaturized scale. Being half exciton, half photon, polaritons benefit from strong Coulomb interactions while they can easily be converted into propagating optical qubits for long-distance entanglement distribution. Despite of an intensive research, the predicted quantum properties of generated polariton pairs have stayed quite elusive and no direct experimental evidence for entanglement formation has been achieved so far, mainly due to background noise caused by phonon-induced ...
Date:	Tue, 07.05.2013
Time:	14:15
Location:	TU Vienna, Wiedner Hauptstraße 8-10, yellow tower, 10th floor, SEM 136
Contact:	Stefan Rotter

Hyperkontraktivität

Speaker:	Jan Schlemmer (Univ.Wien)
Abstract:	im Rahmen des Seminars für Mathematische Physik
Date:	Tue, 07.05.2013
Time:	14:15
Duration:	60 min
Location:	Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:	J. Yngvason

Is Quantum Mechanics exact?