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We explore the coherent transfer of electronic signatures from a stronglycorrelated, optically gated nanoscale quantum dot to a weakly interacting,electrically backgated microscale channel. In this unique side-coupled `T'geometry for transport, we predict a novel mechanism for detecting Rabioscillations induced in the dot through quantum, rather than electrostaticmeans. This detection shows up as a field-tunable split in the Fano lineshapearising due to interference between the dipole coupled dot states and thechannel continuum. The split is further modified by the Coulomb interactionswithin the dot that influence the detuning of the Rabi oscillations.Furthermore, time-resolving the signal we see clear beats when the Rabifrequencies approach the intrinsic Bohr frequencies in the dot. Capturing thesecoupled dynamics, including memory effects and quantum interference in thechannel and the many-body effects in the dot requires coupling a Fock-spacemaster equation for the dot dynamics with the phase-coherent, non-Markoviantime-dependent non-equilibrium Green's function (TDNEGF) transport formalism inthe channel through a properly evaluated self-energy and a Coulomb integral.The strength of the interactions can further be modulated using a backgate thatcontrols the degree of hybridization and charge polarization at the transistorsurface.

Coupling optical and electrical gating for electronic read-out of quantum dot dynamics