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Calendar of Physics Talks Vienna
| Nonlinear stability of the Nordström-Vlasov system |
| Speaker: | Prof. Simone Calogero (Univ. of Braga, Portugal) (Fakultät für Physik) |
| Abstract: | im Rahmen des Literaturseminars |
| Date: | Tue, 01.04.2008 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Seminarraum B, 1. Stock, Währinger Straße 17 |
| Contact: | R. Beig |
| Positive parity heavy mesons in heavy meson chiral perturbation theory |
| Speaker: | Svjetlana Fajfer (Univ. Ljubljana) (Fakultät für Physik) |
| Abstract: | im Rahmen des Teilchenphysikseminars |
| Date: | Tue, 01.04.2008 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Großer Seminarraum, Boltzmanngasse 5, 5. Stock |
| Contact: | H. Neufeld |
| Precision Mass Measurement: w_cyclotron is not qB/m, does E=mc^2 ? |
| Speaker: | Prof. Dave Pritchard (MIT) |
| Abstract: | We have developed an /ion balance/ that has improved atomic and
molecular mass measurement accuracy to ~ 10^-11 . It compares the
cyclotron frequency of /two individual/ molecular or atomic ions trapped
in a uniform magnetic field to find the mass ratio. Besides improving
the mass of fundamental particles, we have discovered a correction to
the cyclotron resonance formula, enabled a new route to determining the
fine structure constant using simple physics, made the best measurement
of the dipole moment of any charged molecule, recalibrated the x-ray
wavelength standard, enabled a possible route to replace the artefact
kilogram with an atomic mass standard, and made a precise test of E=mc^2
. We can also weigh chemical bonds. |
| Date: | Tue, 01.04.2008 |
| Time: | 16:15 |
| Location: | Hörsaal des Atominstitutes der Österreichischen Universitäten |
| Contact: | Prof. Dr. Joerg Schmiedmayer |
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