Invited Papers

Applied Physics B

, Volume 59, Issue 2, pp 127-133

First online:

A test of special relativity with stored lithium ions

  • R. GrieserAffiliated withInstitut für Physik, Universität Mainz
  • , R. KleinAffiliated withInstitut für Physik, Universität Mainz
  • , G. HuberAffiliated withInstitut für Physik, Universität Mainz
  • , S. DickopfAffiliated withInstitut für Physik, Universität Mainz
  • , I. KlaftAffiliated withInstitut für Physik, Universität Mainz
  • , P. KnoblochAffiliated withInstitut für Physik, Universität Mainz
  • , P. MerzAffiliated withInstitut für Physik, Universität Mainz
  • , F. AlbrechtAffiliated withMax-Planck-Institut für Kernphysik Heidelberg
  • , M. GrieserAffiliated withMax-Planck-Institut für Kernphysik Heidelberg
    • , D. HabsAffiliated withMax-Planck-Institut für Kernphysik Heidelberg
    • , D. SchwalmAffiliated withMax-Planck-Institut für Kernphysik Heidelberg
    • , T. KühlAffiliated withGesellschaft für Schwerionenforschung

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Abstract

Laser spectroscopy at the heavy ion storage ring TSR in Heidelberg allows for precision experiments testing the limits of the special theory of relativity. With an opticalΛ-type three-level system of7Li+ the Doppler shift has been measured by saturation spectroscopy as a test of the time dilatation factor γ = (1 −β 2)−1/2 at an ion velocity ofυ = 6.4% c. A precision ofΔν/ν < 9 × 10−9 has been obtained, which sets a second-order limit of 1.1 × 10−6 for any deviation from the time dilatation factor. The fourth-order limit of this deviation is set below 2.7 × 10−4 by the present experiment. These limits are given at a 1 σ confidence level.

PACS

03.30.+p 29.20Dh 42.50.Wm