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20 April 2024 |
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Fano-Andreev effect in T-shape double-quantum-dot in the Kondo regime | | A. M. Calle
; M. Pacheco
; G. B. Martins
; V. M. Apel
; G. A. Lara
; P. A. Orellana
; | | Date: |
20 Oct 2016 | | Abstract: | In the present work, we investigate the electronic transport through a
T-shape double quantum dot system coupled to two normal leads and to one
superconducting lead. We explore the interplay between Kondo and Andreev states
due to proximity effects. We find that Kondo resonance is modified by the
Andreev bound states, which manifest through Fano antiresonances in the local
density of states of the embedded quantum dot and normal transmission. This
means that there is a correlation between Andreev bound states and Fano
resonances that is robust under the influence of high electronic correlation.
We have also found that the dominant couplings at the quantum dots are
characterized by a crossover region that defines the range where the Fano-Kondo
and the Andreev-Kondo effect prevail in each quantum dot. Likewise, we find
that the interaction between Kondo and Andreev bound states has a notable
influence on the Andreev transport. | | Source: | arXiv, 1610.6557 | | Services: | Forum | Review | PDF | Favorites | |
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