Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 32: Precision Measurements and Metrology (Optical Clocks)
Q 32.8: Talk
Wednesday, March 11, 2020, 15:45–16:00, a310
Charactarization of a segmented multi-ion trap for transportable optical clocks with low micro motion — •Hendrik Siebeneich1, Florian Köppen1, Pedram Yaghoubi1, Michael Johanning1, Christof Wunderlich1, Malte Brinkmann2, Alexandre Didier2, Tanja Mehlstäubler2, Stefan Brakhane3, and Dieter Meschede4 — 1Universität Siegen — 2Physikalisch Technische Bundesanstalt — 3Toptica — 4Universität Bonn
Single ion clocks can serve as one of today’s best frequency standards with an accuracy of order 10−18 [1]. Developing a transportable optical ion clock using the 2S1/2 - 2D3/2 resonance with wavelength near 436 nm in a single 171Yb+ ion is the goal of the opticlock [2] consortium. As part of this project we develop a next-generation set-up employing a linear multi-ion trap in order to reduce the measurement time necessary to reach a desired uncertainty.
For a beneficial operation of a multi-ion clock, the rate of collisions with background gas has to be kept small. Also,
sufficiently low micromotion has to be ensured for all ions in a linear ion crystal. With focus on these aspects, we present the status of the experimental setup, and characterize its operation.
[1] N. Huntemann et al., Phys. Rev. Lett. 116, 063001
[2] https://www.opticlock.de; opticlock is supported by the bmbf under grant no.
13N14385.