Second Order Perturbation Theory for a Superconducting Double Quantum Dot
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10424391" target="_blank" >RIV/00216208:11320/20:10424391 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/20:00538692
Result on the web
<a href="https://doi.org/10.7566/JPSCP.30.011002" target="_blank" >https://doi.org/10.7566/JPSCP.30.011002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7566/JPSCP.30.011002" target="_blank" >10.7566/JPSCP.30.011002</a>
Alternative languages
Result language
angličtina
Original language name
Second Order Perturbation Theory for a Superconducting Double Quantum Dot
Original language description
We extend our approach based on the second order perturbation theory in the Coulomb interaction recently developed for quantum dots coupled to superconducting leads to the superconducting double quantum dot setups. Using our perturbative method we evaluate several single-particle quantities such as on-dot induced gap and generalized occupations together with the Andreev in-gap spectra and compare them with numerically exact results from the Numerical Renormalization Group and Quantum Monte Carlo finding a very good correspondence for not too strongly correlated regimes. Thus we can offer in a wide parameter range this method as an efficient and reliable alternative to the heavy numerical tools exclusively used so far for the description of such experimentally relevant systems.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA19-13525S" target="_blank" >GA19-13525S: Quantum coherence in systems with correlated electrons: Superconductivity and magnetism in nano and bulk materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019)
ISBN
978-4-89027-142-9
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
JSPS Journals
Place of publication
JP
Event location
Okayama, Japan
Event date
Sep 23, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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