Rigorous Solution to Nonlinear Spin Relaxation Process

抄録

A rigorous solution is found for a basic equation which determines the time evolution of the nonlinear spin relaxation process. Spin coherent representation is used to transform an original operator equation into a Fokker-Planck-type c-number equation for the probability density which is expanded in terms of spherical harmonics. Then the expansion coefficients are completely determined in the form of a continued fraction. Relevant averages such as moments and cumulants are calculated.