Revisiting $^{129}$Xe electric dipole moment measurements applying a new global phase fitting approach
T. Liu; K. Rolfs; I. Fan; S. Haude; W. Kilian; L. Li; A. Schnabel; J. Voigt · 2020 · arXiv
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Abstract (excerpt)
By measuring the nuclear magnetic spin precession frequencies of polarized $^{129}$Xe and $^{3}$He, a new upper limit on the $^{129}$Xe atomic electric dipole moment (EDM) $ d_\mathrm{A} (^{129}\mathrm{Xe})$ was reported in Phys. Rev. Lett. 123, 143003 (2019). Here, we propose a new evaluation method based on global phase fitting (GPF) for analyzing the continuous phase development of the $^{3}$He-$^{129}$Xe comagnetometer signal. The Cramer-Rao Lower Bound on the $^{129}$Xe EDM for the GPF method is theoretically derived and shows the potential benefit of our new approach. The robustness of t
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Metadata source: arXiv