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Calendar of Physics Talks Vienna
| The molecules' dance in laser light |
| Speaker: | Katharina Doblhoff-Dier (TU Wien) |
| Abstract: | When atoms and molecules are subjected to intense light, all electrons and cores start moving in the laser's electric field. Today, laser-fields can be made so short and so intense and are so well controllable that experimentalists have started to explore the possibility to control the molecules movement by shaping the light fields. However, in many cases, the underlying mechanisms are not yet understood and the analysis is difficult since "slow" processes such as vibrational and rotational dynamics are governed by much faster electronic processes. Yet, thorough understanding of the molecular processes triggered by the laser interaction is necessary if we want to control the molecules' dynamics in laser light. In this talk, I will give an introduction on how molecules interact with laser light, and how this can be described theoretically. |
| Date: | Tue, 06.11.2012 |
| Time: | 12:30 |
| Duration: | 60 min |
| Location: | Univ. of Vienna, Faculty of Physics, Boltzmanngasse 5, 5th floor, Erwin Schrödinger Lecture Hall |
| Contact: | F. Brünner, S. Frank, P. Köhler, A. G. Passegger, S. Stetina - www.univie.ac.at/lunch-seminar |
| AdS/QCD, Light-Front Holography, and Color Confinement |
| Speaker: | Stanley Brodsky (SLAC, Stanford University) |
| Abstract: | The AdS/CFT correspondence between gravitational theories in higher dimensional anti-de Sitter (AdS) space and conformal field theories in physical space-time has led to a remarkable one-parameter semiclassical approximation to non-perturbative hadron dynamics called AdS/QCD. If the conformal AdS metric is modified by a dilaton field to provide color confinement, one derives relativistic, frame-independent, bound-state Klein-Gordon and Dirac equations whose mass eigenvalues give a realistic description of the light-quark meson and baryon spectra, including a zero-mass pion in the chiral limit and Regge-like linear trajectories with the same slope in the hadron's internal orbital angular momentum and radial quantum number.
Light-front holography allows hadronic amplitudes in the AdS fifth dimension to be mapped to light-front wavefunctions of hadrons. |
| Date: | Tue, 06.11.2012 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | TU Wien, Inst.f.Theoret.Physik, Wiedner Hauptstr. 8-10, 10th floor, SEM136 |
| Contact: | Anton Rebhan |
| Atoms in free fall and at rest |
| Speaker: | Helmut Rumpf (Univ.Wien) |
| Abstract: | im Rahmen des Literaturseminars |
| Date: | Wed, 07.11.2012 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Arbeitsgruppe: Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock |
| Contact: | R. Beig |
| The Principle of Maximum Conformality and High Precision pQCD Predictions |
| Speaker: | Stanley Brodsky (SLAC National Accelerator Laboratory, Stanford) |
| Abstract: | zur 4. Vorlesung im Rahmen der Schrödinger-Gastprofessur 2012
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| Date: | Thu, 08.11.2012 |
| Time: | 14:15 |
| Duration: | 90 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
| Statistical mechanical foundations of complexity |
| Speaker: | Constantino Tsallis (Centro Brasileiro de Pesquisas Fisicas) |
| Abstract: | im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische Systeme" (Univ.Wien) und "Analyse Komplexer Systeme" (Mediz.Univ.Wien) |
| Date: | Fri, 09.11.2012 |
| Time: | 14:15 |
| Duration: | 90 min |
| Location: | Fakultät für Physik, Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | H. Hüffel, Stefan Thurner |
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