2007/12/31 by Shi-Hua Ouyang, S. -H. Ouyang, Chi-Hang Lam +2
Physics and Astronomy · #Coulomb #Coulomb blockade #Electron #Magnetic field #Noise (video) #Quantum and electron transport phenomena #Quantum dot #Quantum noise #Semiconductor Quantum Structures and Devices #Shot noise #cond-mat.mes-hall #cond-mat.stat-mech #quant-ph #stochastic dynamics and bifurcation
paper · pdf · doi:10.1140/epjb/e2008-00272-0
published as Eur. Phys. J. B 64, 67 (2008) · 10 pages, 3 figures
openalex publication_date 2008/07/01 · arxiv created 2008/07/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study electron transport through a quantum dot, connected to non-magnetic leads, in a magnetic field. A super-Poissonian electron noise due to the effects of both interacting localized states and dynamic channel blockade is found when the Coulomb blockade is partially lifted. This is sharp contrast to the sub-Poissonian shot noise found in the previous studies for a large bias voltage, where the Coulomb blockade is completely lifted. Moreover, we show that the super-Poissonian shot noise can be suppressed by applying an electron spin resonance (ESR) driving field. For a sufficiently strong ESR driving field strength, the super-Poissonian shot noise will change to be sub-Poissonian.