Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots
arXiv:cond-mat/0603512 · doi:10.1103/PhysRevLett.96.246804
Abstract
We have investigated the noise properties of the tunneling current through vertically coupled self-assembled InAs quantum dots. We observe super-Poissonian shot noise at low temperatures. For increased temperature this effect is suppressed. The super-Poissonian noise is explained by capacitive coupling between different stacks of quantum dots.