E
Ekkehard Peik
Researcher at German National Metrology Institute
Publications - 152
Citations - 8669
Ekkehard Peik is an academic researcher from German National Metrology Institute. The author has contributed to research in topics: Atomic clock & Ion. The author has an hindex of 39, co-authored 149 publications receiving 7508 citations. Previous affiliations of Ekkehard Peik include Max Planck Society & Ludwig Maximilian University of Munich.
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Optical atomic clocks
TL;DR: In this article, the authors review the spectacular accuracy and stability gains that can be obtained when working with laser cooled ions or neutral atoms and discuss some important applications of these optical clocks, from geodesy to tests of fundamental theories to many body physics.
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Bloch oscillations of atoms in an optical potential.
TL;DR: Ultracold cesium atoms are prepared in the ground energy band of the potential induced by an optical standing wave and the momentum distribution of Bloch states and effective masses different from the mass of the free atom is measured.
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Single-Ion Atomic Clock with 3 × 10 − 18 Systematic Uncertainty
TL;DR: An optical frequency standard based on the E3 transition of a single trapped (171)Yb+ ion is experimentally investigated and a Ramsey-type excitation scheme that provides immunity to probe-induced frequency shifts is utilized.
Posted Content
Optical Atomic Clocks
TL;DR: Optical atomic clocks represent the state-of-the-art in modern measurement science as discussed by the authors, and are based on trapped single ions and many neutral atoms, which are known as optical atomic clocks.
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Improved Limit on a Temporal Variation of m p / m e from Comparisons of Yb + and Cs Atomic Clocks
TL;DR: The frequency of the (2)S1/2→(2)F7/2 electric octupole (E3) transition in (171)Yb(+) is measured against two caesium fountain clocks as f(E3)=642,121,496,772,645.36 Hz with an improved fractional uncertainty of 3.9×10(-16).