Abstract
We study resonant tunneling through a quantum dot with one degenerate state in the presence of a strong Coulomb repulsion and a bosonic environment. Using a real-time approach we calculate the spectral density and the nonlinear current within a conserving approximation. The spectral density shows a multiplet of Kondo peaks if the temperature and boson frequency are smaller than the intrinsic broadening of the dot state. As a consequence we find a zero-bias anomaly in the differential conductance which can show local maxima or minima dependent on the value of the gate voltage. The results are compared with recent experiments.
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© 1996 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH
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König, J., Schoeller, H., Schön, G. (1996). Zero-bias anomalies and boson-assisted transport through small quantum dots. In: Helbig, R. (eds) Advances in Solid State Physics 35. Advances in Solid State Physics, vol 35. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0107547
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DOI: https://doi.org/10.1007/BFb0107547
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