, S.
, Ozeri, R.
and Kimball, D.
(2015),
Constraints on Exotic Dipole-Dipole Couplings between Electrons at the Micrometer Scale, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.115.081801
(Accessed September 18, 2024)
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Constraints on Exotic Dipole-Dipole Couplings between Electrons at the Micrometer Scale
Published
Author(s)
, R. Ozeri, Derek F. Kimball
Abstract
New constraints on exotic dipole-dipole interactions between electrons at the micrometer scale are established, based on a recent measurement of the magnetic interaction between two trapped 88Sr+ ions. For light bosons (mass ≤ 0.1 eV) we obtain 90% confidence intervals on pseudo-scalar and axial-vector mediated interaction strengths of |gPe gPe /4πc| ≤ 1.5 × 10−3 and |gAe 4πc| ≤ 1.2 × 10−17, respectively. These bounds significantly improve on previous work for this mass range. Assuming CPT invariance, these constraints are compared to those on anomalous electron-positron interactions, derived from positronium hyperfine spectroscopy. For axial-vector mediated interac- tion the electron-electron constraints are six orders of magnitude more stringent than the electron- positron constraints. Bounds on torsion gravity are also derived and compared with previous work performed at different length scales.Citation
Physical Review Letters
Volume
115
Issue
8
Pub Type
Journals
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Created August 17, 2015, Updated November 10, 2018