CPT

Calendar of Physics Talks Vienna

Time-Resolved Photoemission on the Attosecond Scale
Speaker:Renate Pazourek (Vienna University of Technology)
Abstract:One of the most fundamental processes in the interaction of light with matter is the photoelectric effect, i.e. the emission of an electron after the absorption of a photon. With the advent of ultrashort and well-controlled laser pulses photoemission can now be studied with unprecedented temporal resolution. The challenge lies in interpreting the timing information obtained by attosecond pump-probe experiments. One fundamental question is whether an electron is emitted instantaneously upon absorption of a photon or with a certain time shift. For an accurate theoretical description we numerically solve the time-dependent Schrödinger equation for one- and two-electron atoms and can show that, as long as all measurement-induced distortions can be quantified, the intrinsic (Eisenbud-Wigner-Smith) time delay of photoemission becomes accessible by attosecond pump-probe setups.
Date: Tue, 29.10.2013
Time: 12:30
Duration: 60 min
Location:Vienna University of Technology, Wiedner Hauptstr. 8-10, yellow area, 10th floor, seminar room E136
Contact:Iva Lovrekovic, Albert Georg Passegger - www.univie.ac.at/lunch-seminar

Locally covariantfield theory
Speaker:Jochen Zahn (Univ. Wien)
Abstract:im Rahmen des Literatursemeniars der Gravitationsphysik
Date: Thu, 31.10.2013
Time: 14:15
Duration: 60 min
Location:Arbeitsgruppe: Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock
Contact:H. Rumpf

After the discovery: challenges and open questions in Higgs physics
Speaker:Christophe Grojean (CERN and IFAE, Barcelona)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Thu, 31.10.2013
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:A. Hoang, P. Pietrulewicz