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Demonstration of a Cold Atom Fountain Electron Electric Dipole Moment Experiment

Jason M. Amini·Charles T. Munger Jr.·Harvey Gould
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Abstract

A Cs fountain electron electric dipole moment (EDM) experiment using electric-field quantization is demonstrated. With magnetic fields reduced to 200 pT or less, the electric field lifts the degeneracy between hyperfine levels of different|mF| and, along with the slow beam and fountain geometry, suppresses systematics from motional magnetic fields. Transitions are induced and the atoms polarized and analyzed in field-free regions. The feasibility of reaching a sensitivity to an electron EDM of 2 x 10 exp(-50) C-m [1.3 x 10 exp(-29) e-cm] in a cesium fountain experiment is discussed.

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Jason M. Amini, Charles T. Munger Jr., Harvey Gould. 2006-02-01. Demonstration of a Cold Atom Fountain Electron Electric Dipole Moment Experiment. https://doi.org/10.1103/physreva.75.063416

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