2014/02/04 by Vyacheslavs Kashcheyevs, Janis Timoshenko · 15 citations
Chemistry · Computer Science · Physics and Astronomy · #Adiabatic process #Cascade #Chemistry #Decoupling (probability) #Electron #Physics #Population #Quantization (signal processing) #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Quantum tunnelling #Spectroscopy and Quantum Chemical Studies #cond-mat.mes-hall
paper · pdf · doi:10.1109/cpem.2014.6898496
published as CPEM Digest 2014, p. 536-537 · 2-page summary paper for CPEM Digest'2014
arxiv created 2014/02/04 · openalex publication_date 2014/08/01 · arxiv updated 2015/01/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We generalize the decay cascade model of charge capture statistics for a tunable-barrier non-adiabatic electron pump dominated by the backtunneling error at the quantum dot decoupling stage. The energy scales controlling the competition between the thermal and the dynamical mechanisms for accurate trapped charge quantization are discussed. Empirical fitting formula incorporating quantum dot re-population errors due to particle-hole fluctuations in the source lead is suggested and tested against an exactly solvable rate equation model.