Comparative study of theoretical methods for non-equilibrium quantum transport
Abstract: We present a detailed comparison of three different methods designed to tackle non-equilibrium quantum transport, namely the functional renormalization group (fRG), the time-dependent density matrix renormalization group (tDMRG) and the iterative summation of real-time path integrals (ISPI). For the non-equilibrium single-impurity Anderson model (including a Zeeman term at the impurity site), we demonstrate that the three methods are in quantitative agreement over a wide range of parameters at the particle–hole symmetric point as well as in the mixed-valence regime. We further compare these techniques with two quantum Monte Carlo approaches and the time-dependent numerical renormalization group method
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Notes
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New journal of physics. - 12, 4 (2010) , 043042, ISSN: 1367-2630
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
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Universität
- (when)
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2019
- Creator
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Eckel, Jan
Heidrich-Meisner, Fabian
Jakobs, Severin Georg
Thorwart, Michael
Pletyukhov, Mikhail
Egger, Reinhold
- Contributor
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FRIAS School of Soft Matter Research
- DOI
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10.1088/1367-2630/12/4/043042
- URN
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urn:nbn:de:bsz:25-freidok-852386
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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25.03.2025, 1:50 PM CET
Data provider
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Associated
- Eckel, Jan
- Heidrich-Meisner, Fabian
- Jakobs, Severin Georg
- Thorwart, Michael
- Pletyukhov, Mikhail
- Egger, Reinhold
- FRIAS School of Soft Matter Research
- Universität
Time of origin
- 2019
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