Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 53: Precision measurements and metrology III (with Q)
A 53.3: Vortrag
Freitag, 21. März 2014, 11:15–11:30, DO24 1.101
Characterization of a Transportable Strontium Lattice Clock — •Stefan Vogt, Sebastian Häfner, Stephan Falke, Uwe Sterr, and Christian Lisdat — Physikalisch-Technische Bundesanstalt (PTB); Bundesallee 100; 38116 Braunschweig
The excellent performance of optical frequency standards offers new prospects for applications as well as for fundamental research. Applications include the operation as optical clock and relativistic methods for geodesy. In fundamental research, new bounds for variations of e.g. the fine structure constant can be set and hence experimental input to the search for physics beyond the standard model can be provided.
Here we present the progress on a new apparatus for a lattice clock with strontium atoms, which is designed to be transportable. Laser cooling of strontium atoms into an optical lattice has been achieved and spectroscopy on the clock transition has been carried out. First characterizations of the apparatus indicate that a low inaccuracy of about 10−17 will be feasible with the transportable setup.
This work was supported by QUEST, DFG (RTG 1729), EU-FP7 (SOC2, Project No. 263500), and the European Metrology Research Programme (EMRP) in IND14, ITOC, and QESOCAS. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union.