Dresden 2011 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster 3: Quantengase, Ultrakalte Atome, Ultrakalte Moleküle, Materiewellen Optik, Präzisionsmessungen, Metrologie
Q 57.99: Poster
Thursday, March 17, 2011, 16:30–19:30, P1
Systematic frequency shifts in precision spectroscopy of the 1S-2S transition in atomic hydrogen — Christian G. Parthey1, Arthur Matveev1, Janis Alnis1, •Axel Beyer1, Nikolai Kolachevsky1, Randolf Pohl1, Thomas Udem1, and Theodor W. Hänsch1,2 — 1Max-Planck-Institut für Quantenoptik, 85748 Garching — 2Ludwig-Maximilians-Universität, 80799 München
Precision spectroscopy of the 1S-2S transition in atomic hydrogen has been used to test quantum electro dynamics (QED), determine the Rydberg constant and the proton charge radius. It can also be used to set limits on possible Lorentz-boost invariance violations. Here we report on a new measurement of the 1S-2S transition pushing the uncertainty to the 10−15 level. We describe the studied systematic effects in detail.