Clear Fano resonances that can be tuned by changing the device design or with applied voltages are observed. In the nonlinear regime, the visibility of the Fano interferences increases dramatically, which could be used as a sensitive probe of the degree of coupling between discrete states and the continuum, which is relevant for example for qubits where coupling to the environment needs to be kept to a minimum.
- M. Kroner
- A. O. Govorov
- K. Karrai
