Enhanced Effect of Temporal Variation of the Fine Structure Constant and the Strong Interaction in Th229

V. V. Flambaum
Phys. Rev. Lett. 97, 092502 – Published 31 August 2006

Abstract

The relative effects of the variation of the fine structure constant α=e2/c and the dimensionless strong interaction parameter mq/ΛQCD are enhanced by 5–6 orders of magnitude in a very narrow ultraviolet transition between the ground and the first excited states in the Th229 nucleus. It may be possible to investigate this transition with laser spectroscopy. Such an experiment would have the potential of improving the sensitivity to temporal variation of the fundamental constants by many orders of magnitude.

  • Received 24 April 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.092502

©2006 American Physical Society

Authors & Affiliations

V. V. Flambaum

  • School of Physics, The University of New South Wales, Sydney NSW 2052, Australia

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Issue

Vol. 97, Iss. 9 — 1 September 2006

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