Electron bunching in transport through quantum dots in a high magnetic field

O. Zarchin, Y. C. Chung, M. Heiblum, D. Rohrlich, V. Umansky

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Shot noise measurements provide information on particle charge and its correlations. We report on shot noise measurements in a generic quantum dot under a quantized magnetic field. The measured noise at the peaks of a sequence of conductance resonances was some 9 times higher than expected, suggesting bunching of electrons as they traverse through the dot. This enhancement might be mediated by an additional level, weakly coupled to the leads or an excited state. Note that in the absence of a magnetic filed no bunching had been observed.

Original languageEnglish
Article number066801
JournalPhysical Review Letters
Volume98
Issue number6
DOIs
StatePublished - 6 Feb 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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