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%2F68378271%3A_____%2F20%3A00538692" target="_blank" >RIV/68378271:_____/20:00538692 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/20:10424391
Result on the web
<a href="http://dx.doi.org/10.7566/JPSCP.30.011002" target="_blank" >http://dx.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.n
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
JPS Conference Proceedings
ISBN
978-4-89027-142-9
ISSN
2435-3892
e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
Physical Society of Japan
Place of publication
Tokyo
Event location
Okayama
Event date
Sep 23, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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