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## Main Question or Discussion Point

**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.