Surface-acoustic-wave-induced transport in a double quantum dot.
We report on nonadiabatic transport through a double quantum dot under irradiation of surface acoustic waves generated on chip. At low excitation powers, absorption and emission of single and multiple phonons are observed. At higher power, sequential phonon assisted tunneling processes excite the double dot in a highly nonequilibrium state. The present system is attractive for studying electron-phonon interaction with piezoelectric coupling.
Naber
W J M
WJ
SRO NanoElectronics, MESA+ Institute for NanoTechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
Fujisawa
T
T
Liu
H W
HW
van der Wiel
W G
WG