Modeling of cotunneling in quantum dot systems
(2010) International Conference on Frontiers of Quantum and Mesoscopic Thermodynamics (FQMT '08) 42(3). p.595-599- Abstract
- 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 oil 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. (C) 2009 Elsevier B.V. All rights... (More)
- 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 oil 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. (C) 2009 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1568063
- author
- Pedersen, Jonas
LU
and Wacker, Andreas
LU
- organization
- publishing date
- 2010
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Transport, Master equation, Quantum dots
- host publication
- Physica E-Low-Dimensional Systems & Nanostructures
- volume
- 42
- issue
- 3
- pages
- 595 - 599
- publisher
- Elsevier
- conference name
- International Conference on Frontiers of Quantum and Mesoscopic Thermodynamics (FQMT '08)
- conference location
- Prague, Czech Republic
- conference dates
- 2008-07-28 - 2008-08-02
- external identifiers
-
- wos:000274954500067
- scopus:74149093537
- ISSN
- 1386-9477
- DOI
- 10.1016/j.physe.2009.06.069
- language
- English
- LU publication?
- yes
- id
- c1543ff1-9979-489b-a816-f8517272efde (old id 1568063)
- alternative location
- http://arxiv.org/abs/0904.3249v2
- date added to LUP
- 2016-04-01 13:49:48
- date last changed
- 2022-03-21 20:47:55
@inproceedings{c1543ff1-9979-489b-a816-f8517272efde, abstract = {{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 oil 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. (C) 2009 Elsevier B.V. All rights reserved.}}, author = {{Pedersen, Jonas and Wacker, Andreas}}, booktitle = {{Physica E-Low-Dimensional Systems & Nanostructures}}, issn = {{1386-9477}}, keywords = {{Transport; Master equation; Quantum dots}}, language = {{eng}}, number = {{3}}, pages = {{595--599}}, publisher = {{Elsevier}}, title = {{Modeling of cotunneling in quantum dot systems}}, url = {{https://lup.lub.lu.se/search/files/3614385/1580502.pdf}}, doi = {{10.1016/j.physe.2009.06.069}}, volume = {{42}}, year = {{2010}}, }