Abstract
A 129Xe comagnetometer designed for the measurement of neutron electric dipole moment (nEDM) as precisely as 1 × 10−27 e cm is presented. Highly nuclear spin polarized 129Xe are introduced into an EDM cell where the 129Xe spin precession is detected by means of the two-photon transition. The geometric phase effect (GPE) which generates the false nEDM was quantitatively discussed and the systematic error of nEDM from the GPE was estimated considering the buffer-gas suppression due to Xe atomic collisions. Research and development are in progress to construct the 129Xe comagnetometer with a field sensitivity of 0.3 fT. At present, about 70 % nuclear spin polarized 129Xe atoms have been obtained in a spin exchange opitial pumping cell, that are in the process of being transferred into the EDM cell via a cold trap.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
