We seek candidates for doing either magneto-optical measurements or first principles atomistic simulations. The candidate will study point defects acting as quantum bits in diamond and related materials by means of either advanced density functional theory calculations or experimental techniques based on optically detected magnetic resonance. Local computer facilities with scientific program packages and laboratory equipments are available to conduct this research. By exploring the magneto-optical properties of point defects in solids, one can utilize them for single photon sources, single quantum bits for quantum information processing applications, or nanometer spatial resolution ultrasensitive sensors for biology, space industry or materials science. These efforts and studies will be carried out in a wide international network with leading laboratories all around the world. Results are expected to be published in prestigious journals as well as scientific workshops worldwide including the USA and Asian countries.