Test of time dilation using stored Li+ ions as clocks at relativistic speed

We present the concluding result from an Ives-Stilwell-type time dilation experiment using 7Li+ ions confined at a velocity of β=v/c=0.338 in the storage ring ESR at Darmstadt. A Λ-type three-level system within the hyperfine structure of the 7Li+3S1 →3P2 line is driven by two laser beams aligned pa...

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Bibliographic Details
Published in:Physical review letters 2014-09, Vol.113 (12), p.120405-120405, Article 120405
Main Authors: Botermann, Benjamin, Bing, Dennis, Geppert, Christopher, Gwinner, Gerald, Hänsch, Theodor W, Huber, Gerhard, Karpuk, Sergei, Krieger, Andreas, Kühl, Thomas, Nörtershäuser, Wilfried, Novotny, Christian, Reinhardt, Sascha, Sánchez, Rodolfo, Schwalm, Dirk, Stöhlker, Thomas, Wolf, Andreas, Saathoff, Guido
Format: Article
Language:English
Subjects:
Clocks
Dilation
Doppler
Doppler effect
Hyperfine structure
Ion beams
Lasers
Relativity
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Summary:We present the concluding result from an Ives-Stilwell-type time dilation experiment using 7Li+ ions confined at a velocity of β=v/c=0.338 in the storage ring ESR at Darmstadt. A Λ-type three-level system within the hyperfine structure of the 7Li+3S1 →3P2 line is driven by two laser beams aligned parallel and antiparallel relative to the ion beam. The lasers' Doppler shifted frequencies required for resonance are measured with an accuracy of
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.113.120405