Nr. Skrynnikov et R. Bruschweiler, COMMENT ON NUCLEAR-SPIN RELAXATION AND NONERGODIC QUASI-EQUILIBRIA, Chemical physics letters, 281(1-3), 1997, pp. 239-242
Spin relaxation is described for a system of three accidentally degene
rate nuclear spins that can be individually monitored, e.g., via heter
onuclear scalar coupling partners. The exact treatment based on Bloch-
Wangsness-Redfield theory is shown to be consistent with the stochasti
c Liouville equation correcting and extending earlier findings (Brusch
weiler, Chem. Phys. Lett. 270 (1997) 217). The transition to the Solom
on regime is discussed when degeneracy is removed. (C) 1997 Elsevier S
cience B.V.