Search For An Electric Dipole Moment In Xe-129 Atom With Nuclear Spin Oscillator Technique

Development of a nuclear spin oscillator intended for the experimental search for an electric dipole moment in Xe-129 atom is reported. The spin oscillation is brought about by polarizing Xe-129 nuclear spins by spin exchange with optically polarized Rb atoms, detecting the spin precession through the transmission of a circularly polarized laser light, and applying a feedback field according to the detected spins. Until present, a frequency precision, in a measurement time of T = 45,000 s, of delta nu = 5.2 nHz has been achieved.