Quartet tomography in multiterminal Josephson junctions
David Christian Ohnmacht, Marco Coraiola, Juan José García-Esteban, Deividas Sabonis, Fabrizio Nichele, Wolfgang Belzig, Juan Carlos Cuevas
DOI 10.1103/PhysRevB.109.L241407 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We investigate the detection of quartets in hybrid multiterminal Josephson junctions. Using simple models of quantum dots coupled to superconducting leads, we find that quartets are ubiquitous in quantum coherent structures and show how to rigorously extract their contribution to the current-phase relation (CPR). We also demonstrate that quartets are closely related to the hybridization of Andreev bound states (ABSs) in these systems and propose a method to identify quartets directly in ABS spectra. We illustrate our method by analyzing the spectroscopic measurements of the ABS spectrum in a three-terminal Josephson junction realized in an InAs/Al heterostructure. Our analysis strongly suggests the existence of quartets in the studied hybrid system.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| InAs/Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Microwave signatures of topological superconductivity in planar Josephson junctions
similarity 0.92Barış Pekerten et al.
Source status unknown — claims are unverified
Sextets in four-terminal Josephson junctions
similarity 0.92Miriam Rike Ebert et al.
Source status unknown — claims are unverified
Current-phase relations of InAs nanowire Josephson junctions: From interacting to multimode regimes
similarity 0.92Sean Hart et al.
Source status unknown — claims are unverified
Quasiparticle Dynamics in Epitaxial Al-InAs Planar Josephson Junctions
similarity 0.92Bassel Heiba Elfeky et al.
Source status unknown — claims are unverified
Determination of the current-phase relation of an InAs 2DEG Josephson junction with a microwave resonator
similarity 0.91Zoltán Scherübl et al.
Source status unknown — claims are unverified
Hard-Gap Spectroscopy in a Self-Defined Mesoscopic InAs/Al Nanowire Josephson Junction
similarity 0.91Patrick Zellekens et al.
Source status unknown — claims are unverified