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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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • 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

  • 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