Scattering description of Andreev molecules

Autor: J.-L. Smirr, J. Griesmar, J.-D. Pillet, Caglar Girit, V. Benzoni
Přispěvatelé: Jeunes Équipes de l'Institut de Physique du Collège de France (JEIPCdF), Collège de France (CdF (institution))-Centre National de la Recherche Scientifique (CNRS), European Project: 636744,H2020,ERC-2014-STG,JSPEC(2015)
Rok vydání: 2020
Předmět:
Josephson effect
FOS: Physical sciences
02 engineering and technology
superconductors
01 natural sciences
Superconductivity (cond-mat.supr-con)
Condensed Matter::Superconductivity
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
Bound state
Molecule
josephson effect
010306 general physics
[PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Physics
Superconductivity
Conduction channel
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed matter physics
Scattering
business.industry
Condensed Matter - Superconductivity
superconductivity
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
Thermal conduction
bound states
[PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]
Semiconductor
0210 nano-technology
business
Zdroj: SciPost Physics Core
SciPost Physics Core, 2020, 2 (2), ⟨10.21468/SciPostPhysCore.2.2.009⟩
ISSN: 2666-9366
DOI: 10.21468/scipostphyscore.2.2.009
Popis: An Andreev molecule is a system of closely spaced superconducting weak links accommodating overlapping Andreev Bound States. Recent theoretical proposals have considered one-dimensional Andreev molecules with a single conduction channel. Here we apply the scattering formalism and extend the analysis to multiple conduction channels, a situation encountered in epitaxial superconductor/semiconductor weak links. We obtain the multi-channel bound state energy spectrum and quantify the contribution of the microscopic non-local processes leading to the formation of Andreev molecules.
Comment: Resubmission to SciPost
Databáze: OpenAIRE