Limits for Spatial Anisotropy by Use of Nuclear-Spin-Polarized ${}^{9}{Be}^{+}$ Ions

Publisher Website

3 June 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 54 (22) , 2387-2390
https://doi.org/10.1103/physrevlett.54.2387

Abstract

The frequency of a nuclear spin-flip (

| Δ m_{I} | = 1

) transition in

{}^{9}{Be}^{+}

has been compared to the frequency of a hydrogen maser transition (

| Δ F | = 1

,

Δ m_{F} = 0

) to see if the relative frequencies depend on the orientation of the

{}^{9}{Be}^{+}

ions in space. The present null result represents a decrease in the limits set by Hughes and Drever on a spatial anisotropy by a factor of about 300.

Keywords

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