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Enhancement of the electron electric dipole moment in gadolinium 3+

S. Y. Buhmann·V. A. Dzuba·O. P. Sushkov
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Abstract

There have been recent suggestions for searching for the electron electric dipole moment, using solid state experiments with compounds containing Gd 3+ ions. These experiments could improve the sensitivity compared to present atomic and molecular experiments by several orders of magnitude. The analysis of the problem requires a calculation of the enhancement coefficient K for the electron electric dipole moment in the Gd 3+ ion. In this work we perform this calculation. The result is K = -4.9 +- 1.6. Limitations of the accuracy of the calculation are mainly due to the lack of data on Gd 3+ excitation spectra. We formulate which quantities have to be measured and/or calculated to improve the accuracy.

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S. Y. Buhmann, V. A. Dzuba, O. P. Sushkov. 2002-04-25. Enhancement of the electron electric dipole moment in gadolinium 3+. https://doi.org/10.1103/physreva.66.042109

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