Noise enhancement due to quantum coherence in coupled quantum dots

Abstract

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.

4 pages, 3 figures, corrected version (Figs.2 and 3)

References in corpus (2)

• Full counting statistics of super-Poissonian shot noise in multi-level quantum dots
• Super-poissonian noise, negative differential conductance, and relaxation effects in transport through molecules, quantum dots and nanotubes

Cited by in corpus (7)

• Counting Statistics of Non-Markovian Quantum Stochastic Processes
• Weak coupling approximations in non-Markovian Transport
• Tunable dynamical channel blockade in double-dot Aharonov-Bohm interferometers
• Resonance fluorescence in driven quantum dots: electron and photon correlations
• Electron Bunching in Stacks of Coupled Quantum Dots
• The influence of charge detection on counting statistics
• Spin-dependent current noises in transport through coupled quantum dots