Optically Pumped Cs Magnetometry for the n2EDM Project at PSI

 A non-zero neutron electric dipole moment implies CP-violation, which is one of the conditions set by Sakharov to explain the matter-antimatter asymmetry. nEDM can thus be used as a probe for Standard Model and Beyond Standard Model theories. The measurement of this nEDM value requires a very stable and homogeneous small magnetic field. To monitor the homogeneity of this field, a series of optically pumped cesium magnetometers is used. Variations in the current source used to generate the field, can also be monitored using a separate system of magnetometers. The magnetometers are based on the principle of optical pumping, which causes the medium to be polarized, and probing this polarization, where the transmittance of laser light depends on the precession of the polarization around the magnetic field. This PhD thesis entails the optimization and implementation of the system of magnetometers for the n2EDM project at the Paul Scherrer Institute in Switzerland.