Landau-Lif****z-Gilbert vs. Bloch Could anyone elucidate on the difference between the phenomenology of the Landau-Lif****z-Gilbert equations and Bloch equations. When damping and relaxation are not included they have identical form. Are they the same thing? I've been learning about NMR related stuff for a while and I've never heard mention of the Landau-Lif****z-Gilbert equation. Any help would be appreciated.