Photon assisted long-range tunneling

 

Photon assisted long-range tunneling
F. Gallego-Marcos, R. Sánchez and G. Platero.
J. Appl. Phys. 117, 112808 (2015)

1.4913834.figures.online.f2
We analyze long-range transport through an ac driven triple quantum dot with a single electron. Resonant transitions between separated and detuned dots are mediated by the exchange of n photons with the time-dependent field. An effective model is proposed in terms of second order (cotunneling) processes which dominate the long-range transport between the edge quantum dots. The ac field renormalizes the inter dot hopping, modifying the level hybridization. It results in a non-trivial behavior of the current with the frequency and amplitude of the external ac field.

 

 

 

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