Blocking-state influence on shot noise and conductance in quantum dots

  title={Blocking-state influence on shot noise and conductance in quantum dots},
  author={M.-C. Harabula and V. Ranjan and R. Haller and G. Fulop and Christian Schonenberger},
  journal={arXiv: Mesoscale and Nanoscale Physics},
Quantum dots (QDs) investigated through electron transport measurements often exhibit varying, state-dependent tunnel couplings to the leads. Under specific conditions, weakly coupled states can result in a strong suppression of the electrical current and they are correspondingly called blocking states. Using the combination of conductance and shot noise measurements, we investigate blocking states in carbon nanotube (CNT) QDs. We report negative differential conductance and super-Poissonian… 
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