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Effective low-energy models for superconducting impurity systems

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00571929" target="_blank" >RIV/68378271:_____/23:00571929 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/23:10468726

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevB.107.155111" target="_blank" >https://doi.org/10.1103/PhysRevB.107.155111</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevB.107.155111" target="_blank" >10.1103/PhysRevB.107.155111</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effective low-energy models for superconducting impurity systems

  • Original language description

    We present two complementary methods to calculate the Andreev bound state energies of a single-level quantum dot connected to superconducting leads described by the superconducting impurity Anderson model. The first method, which is based on a mapping to a low-energy model, can be utilized to extract the Andreev bound state energies from finite-temperature, imaginary-time quantum Monte Carlo data without the necessity of any analytic continuation technique. The second method maps the full model on an exactly solvable superconducting atomic limit with renormalized parameters. As such, it represents a fast and reliable method for a quick scan of the parameter space. We demonstrate that after adding a simple band correction this method can provide predictions for measurable quantities, including the Josephson current, that are in a solid quantitative agreement with precise results obtained by the numerical renormalization group and quantum Monte Carlo.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

    <a href="/en/project/GA22-22419S" target="_blank" >GA22-22419S: Molecular spintronics: control of spin-orbit fields</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review B

  • ISSN

    2469-9950

  • e-ISSN

    2469-9969

  • Volume of the periodical

    107

  • Issue of the periodical within the volume

    15

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    14

  • Pages from-to

    155111

  • UT code for WoS article

    000970293900004

  • EID of the result in the Scopus database

    2-s2.0-85152125659