Nonequilibrium plasmons and transport properties of a double-junction quantum wire

J. U. Kim, Mahn Soo Choi, I. V. Krive, J. M. Kinaret

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We study theoretically the current-voltage characteristics, shot noise, and full counting statistics of a quantum wire double-barrier structure. We model each wire segment by a spinless Luttinger liquid. Within the sequential tunneling approach, we describe the system's dynamics using a master equation. We show that at finite bias the nonequilibrium distribution of plasmons in the central wire segment leads to increased average current, enhanced shot noise, and full counting statistics corresponding to a super-Poissonian process. These effects are particularly pronounced in the strong interaction regime, while in the noninteracting case we recover results obtained earlier using detailed-balance arguments.

Original languageEnglish
Pages (from-to)1158-1176
Number of pages19
JournalLow Temperature Physics
Issue number12
Publication statusPublished - 2006

Bibliographical note

Funding Information:
This work has been supported by the Swedish Foundation for Strategic Research through the CARAMEL consortium, STINT, the SKORE-A program, the eSSC at Postech, and the SK-Fund. J. U. Kim acknowledges partial financial support from Stiftelsen Fru Mary von Sydows, född Wijk, donationsfond. I. V. Krive gratefully acknowledges the hospitality of the Department of Applied Physics at Chalmers University of Technology.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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