SAMOP 2021 – scientific programme
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A: Fachverband Atomphysik
A 2: Precision spectroscopy of atoms and ions (joint session A/Q)
A 2.8: Poster
Monday, September 20, 2021, 16:30–18:30, P
Current status of the transportable 87Sr lattice clock at PTB — •Tim Lücke, Ingo Noßke, Chetan Vishwakarma, Sofia Herbers, and Christian Lisdat — Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
The prospect of direct observation and accurate determination of gravitational potential differences led to great efforts to develop transportable optical clocks within the last decade. At PTB, we are operating a 87Sr lattice clock in an air-conditioned car trailer for chronometric leveling. Here we present a recent uncertainty evaluation of our clock reaching the very low 10−17 regime. Furthermore, we explore future measures to reduce its uncertainty into the 10−18 regime including a new physics package allowing the transport of the atoms into a cryogenic interrogation chamber by a moving lattice.
Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 434617780 - SFB 1464 Terra Q and Project-ID 390837967 - EXC-2123 QuantumFrontiers.