Shot noise in a quantum dot coupled to non-magnetic leads: Effects of Coulomb interaction

S. H. Ouyang, Chi Hang Lam, J. Q. You

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalEuropean Physical Journal B
Volume64
Issue number1
DOIs
Publication statusPublished - 1 Jul 2008

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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