Number of the records: 1
Correlation effects in superconducting quantum dot systems
- 1.
SYSNO ASEP 0498398 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Correlation effects in superconducting quantum dot systems Author(s) Pokorný, Vladislav (FZU-D) RID, ORCID
Žonda, M. (CZ)Number of authors 2 Source Title Physica B-Condensed Matter. - : Elsevier - ISSN 0921-4526
Roč. 536, May (2018), s. 488-491Number of pages 4 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords superconducting quantum dot ; quantum Monte Carlo ; zero-pi phase transition Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA15-14259S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000431075600112 EID SCOPUS 85028333870 DOI 10.1016/j.physb.2017.08.059 Annotation We study the effect of electron correlations on a system consisting of a single-level quantum dot with local Coulomb interaction attached to two superconducting leads. We use the single-impurity Anderson model with BCS superconducting baths to study the interplay between the proximity induced electron pairing and the local Coulomb interaction. We show how to solve the model using the continuous-time hybridization-expansion quantum Monte Carlo method. The results obtained for experimentally relevant parameters are compared with results of self-consistent second order perturbation theory as well as with the numerical renormalization group method.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2019
Number of the records: 1