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Inelastic effects in the Coulomb blockade and Kondo regimes of electrontransport through molecular junctions are considered within a simplenonequilibrium equation-of-motion (EOM) approach. The scheme isself-consistent, and can qualitatively reproduce the main experimentalobservations of vibrational features in Coulomb blockade [H.Park et al., Nature407, 57 (2000)] and Kondo [L.H.Yu et al., Phys. Rev. Lett. 93, 266802 (2004)]regimes. Considerations similar to the equilibrium EOM approach by Meir et al.[Phys. Rev. Lett. 66, 3048 (1991); ibid. 70, 2601 (1993)] are used on theKeldysh contour to account for the nonequilibrium nature of the junction, anddressing by appropriate Franck-Condon (FC) factors is used to account forvibrational features. Results of the equilibrium EOM scheme by Meir et al. arereproduced in the appropriate limit.Comment: 12 pages, 5 figure

Inelastic effects in molecular junctions in the Coulomb and Kondo regimes: Nonequilibrium equation-of-motion approach