Noise enhancement due to quantum coherence in coupled quantum dots.
We show that the intriguing observation of noise enhancement in the charge transport through two vertically coupled quantum dots can be explained by the interplay of quantum coherence and strong Coulomb blockade. We demonstrate that this novel mechanism for super-Poissonian charge transfer is very sensitive to decoherence caused by electron-phonon scattering as inferred from the measured temperature dependence.
Kiesslich
G
G
School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Schöll
E
E
Brandes
T
T
Hohls
F
F
Haug
R J
RJ