Interaction-induced harmonic frequency mixing in quantum dots
arXiv:0806.3342 · doi:10.1103/PhysRevLett.101.036806
Abstract
We show that harmonic frequency mixing in quantum dots coupled to two leads under the influence of time-dependent voltages of different frequency is dominated by interaction effects. This offers a unique and direct spectroscopic tool to access correlations, and holds promise for efficient frequency mixing in nano-devices. Explicit results are provided for an Anderson dot and for a molecular level with phonon-mediated interactions.
4 pages, 2 figures, accepted for publication in Phys.Rev.Lett