CPT

  • Previous Weeks <<
  • 01.01. - 07.01 2018
  • 08.01. - 14.01 2018
  • 15.01. - 21.01 2018
  • 22.01. - 28.01 2018
  • 29.01. - 04.02 2018
  • 05.02. - 11.02 2018
  • 12.02. - 18.02 2018
  • 19.02. - 25.02 2018
  • 26.02. - 04.03 2018
  • 05.03. - 11.03 2018
  • 12.03. - 18.03 2018
  • 19.03. - 25.03 2018
  • 26.03. - 01.04 2018
  • Next Weeks >>

Calendar of Physics Talks Vienna

The Hyperfine Puzzle of Strong-Field Bound-State QED
Speaker:Prof. Dr. Wilfried Nörtershäuser (Technische Universität Darmstadt)
Abstract:While quantum electrodynamics is usually referred to as the most accurately tested theory, its consistency for bound electrons in strong fields is still not proven with high accuracy. The strongest magnetic fields available in the laboratory are experienced by electrons bound in highly charged, heavy ions which can be probed by hyperfine transition spectroscopy. The transition in lithium-like Bismuth was directly observed for the first time in 2011 at the experimental storage ring ESR located at GSI Darmstadt, but the accuracy of the result was limited by the imprecise knowledge of the ion velocity and the corresponding Doppler shift. In a recent beamtime at the ESR, we were able to reduce the uncertainties ... the result was more than 7 sigma off... [for complete abstract visit: https://indico.smi.oeaw.ac.at/event/252/]
Date: Tue, 30.01.2018
Time: 17:00
Duration: 60 min
Location:Stefan-Meyer-Institut, Boltzmanngasse 3, 1090 Wien, Seminarraum 3-2-08 (2. Stock)
Contact:Prof. Dr. Eberhard Widmann, Dr. Martin Simon