Effect of dephasing on mesoscopic conductance fluctuations in quantum dots with single-channel leads

E McCann, Igor Lerner

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We consider the distribution of conductance fluctuations in disordered quantum dots with single-channel leads. Using a perturbative diagrammatic approach, valid for continuous level spectra, we describe dephasing due to processes within the dot by considering two different contributions to the level broadening, thus satisfying particle number conservation. Instead of a completely non-Gaussian distribution, which occurs for zero dephasing, we find for strong dephasing that the distribution is mainly Gaussian with nonuniversal variance and non-Gaussian tails.
Original languageEnglish
Pages (from-to)7219-7227
Number of pages9
JournalPhysical Review B
Volume57
Issue number12
DOIs
Publication statusPublished - 1 Mar 1998

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