Michelson–Morley analogue for electrons using trapped ions to test Lorentz symmetry

T. Pruttivarasin (), M. Ramm, S. G. Porsev, I. I. Tupitsyn, M. S. Safronova, M. A. Hohensee and H. Häffner ()
Additional contact information
T. Pruttivarasin: University of California
M. Ramm: University of California
S. G. Porsev: University of Delaware
I. I. Tupitsyn: St Petersburg State University, Ulianovskaya 1, Petrodvorets, St Petersburg 198504, Russia
M. S. Safronova: University of Delaware
M. A. Hohensee: University of California
H. Häffner: University of California

Nature, 2015, vol. 517, issue 7536, 592-595

Abstract: An electronic analogue of a Michelson–Morley experiment, in which an electron wave packet bound inside a calcium ion is split into two parts and subsequently recombined, demonstrates that the relative change in orientation of the two parts that results from the Earth’s rotation reveals no anisotropy in the electron dispersion; this verification of Lorentz symmetry improves on the precision of previous tests by a factor of 100.

Date: 2015
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DOI: 10.1038/nature14091

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