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

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

doi:10.1063/1.2400695

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 journal › Article › peer-review

4 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1158-1176
Number of pages	19
Journal	Low Temperature Physics
Volume	32
Issue number	12
DOIs	https://doi.org/10.1063/1.2400695
Publication status	Published - 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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10.1063/1.2400695

Cite this

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title = "Nonequilibrium plasmons and transport properties of a double-junction quantum wire",

abstract = "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.",

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year = "2006",

doi = "10.1063/1.2400695",

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AU - Kim, J. U.

AU - Choi, Mahn Soo

AU - Krive, I. V.

AU - Kinaret, J. M.

N1 - 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.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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

Abstract

Bibliographical note

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