Photon- And Phonon-Assisted Tunneling In The Three-Dimensional Charge Stability Diagram Of A Triple Quantum Dot Array

We report both photon- and phonon-assisted tunneling transitions in a linear array of three quantum dots, which can only be understood by considering the full three-dimensionality of the charge stability diagram. Such tunneling transitions potentially contribute to leakage of qubits defined in this system. A detailed understanding of these transitions is important as they become more abundant and complex to analyze as quantum dot arrays are scaled up. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4798335]