Modeling of cotunneling in quantum dot systems

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Modeling of cotunneling in quantum dot systems. / Pedersen, Jonas Nyvold; Wacker, Andreas.

In: Physica E: Low-dimensional Systems and Nanostructures, Vol. 42, No. 3, 2010, p. 595-599.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Author

Pedersen, Jonas Nyvold; Wacker, Andreas / Modeling of cotunneling in quantum dot systems.

In: Physica E: Low-dimensional Systems and Nanostructures, Vol. 42, No. 3, 2010, p. 595-599.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Bibtex

@article{d4521425f69f49a68c58af16314cae58,
title = "Modeling of cotunneling in quantum dot systems",
publisher = "Elsevier BV North-Holland",
author = "Pedersen, {Jonas Nyvold} and Andreas Wacker",
year = "2010",
doi = "10.1016/j.physe.2009.06.069",
volume = "42",
number = "3",
pages = "595--599",
journal = "Physica E: Low-dimensional Systems and Nanostructures",
issn = "1386-9477",

}

RIS

TY - JOUR

T1 - Modeling of cotunneling in quantum dot systems

A1 - Pedersen,Jonas Nyvold

A1 - Wacker,Andreas

AU - Pedersen,Jonas Nyvold

AU - Wacker,Andreas

PB - Elsevier BV North-Holland

PY - 2010

Y1 - 2010

N2 - Transport through nanosystems is treated within the second-order von Neumann approach. This approach bridges the gap between rate equations which neglect level broadening and cotunneling, and the transmission formalism, which is essentially based on the single-particle picture thereby treating many-particle interactions on an approximate level. Here we provide an alternative presentation of the method in order to clarify the underlying structure. Furthermore we apply it to the problem of cotunneling. It is shown that both elastic and inelastic cotunneling can be described quantitatively, while the transmission approach with a mean-field treatment of the interaction provides an artificial bistability.

AB - Transport through nanosystems is treated within the second-order von Neumann approach. This approach bridges the gap between rate equations which neglect level broadening and cotunneling, and the transmission formalism, which is essentially based on the single-particle picture thereby treating many-particle interactions on an approximate level. Here we provide an alternative presentation of the method in order to clarify the underlying structure. Furthermore we apply it to the problem of cotunneling. It is shown that both elastic and inelastic cotunneling can be described quantitatively, while the transmission approach with a mean-field treatment of the interaction provides an artificial bistability.

U2 - 10.1016/j.physe.2009.06.069

DO - 10.1016/j.physe.2009.06.069

JO - Physica E: Low-dimensional Systems and Nanostructures

JF - Physica E: Low-dimensional Systems and Nanostructures

SN - 1386-9477

IS - 3

VL - 42

SP - 595

EP - 599

ER -