This theory was developed in order to relate dislocation mobility to the strength of materials such as body-centered cubic Fe and covalently bonded Si. The dislocation mobility in these materials was described in terms of the resonant transfer of dislocations, as induced by a perturbation which was due to an externally applied shear stress. It was found to be possible to derive the yield strength from the dislocation mobility for all of the materials which were investigated.

Quantum Theory of Dislocation Motion in Crystals. T.Suzuki: Journal of the Physical Society of Japan, 1996, 65[8], 2526-31