Sextets in four-terminal Josephson junctions
Miriam Rike Ebert, David Christian Ohnmacht, Wolfgang Belzig, Juan Carlos Cuevas
DOI 10.1103/phvj-vfnx · 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
Multiterminal superconducting junctions have revitalized the investigation of the Josephson effect. One of the most interesting aspects of these hybrid systems is the occurrence of multi-Cooper pair tunneling processes that have no analog in two-terminal devices. Such correlated tunneling events are also intimately connected to the Andreev bound states (ABSs) supported by these structures. Josephson junctions with four superconducting terminals have attracted special attention because they are predicted to support ABSs with nontrivial topological properties. Here, we present a theoretical study of sextets, which are correlated tunneling processes involving three Cooper pairs and four different superconducting terminals. We investigate how sextets can be identified from the analysis of the current-phase relation, show how sextets are connected to the hybridization of ABSs, and discuss their existence in recent experiments on four-terminal devices realized in hybrid Al/InAs heterostructures.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al/InAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Quartet tomography in multiterminal Josephson junctions
similarity 0.94David Christian Ohnmacht et al.
Source status unknown — claims are unverified
Sextets in four-terminal Josephson junctions
similarity 0.92Miriam Rike Ebert et al. · 2025 · arXiv:2507.23464
Source status unknown — claims are unverified
Microwave signatures of topological superconductivity in planar Josephson junctions
similarity 0.91Barış Pekerten et al.
Source status unknown — claims are unverified
Flux-tunable Josephson effect in a four-terminal junction
similarity 0.90Christian G. Prosko et al.
Source status unknown — claims are unverified
Current-phase relations of InAs nanowire Josephson junctions: From interacting to multimode regimes
similarity 0.90Sean Hart et al.
Source status unknown — claims are unverified
Signatures of a topological phase transition in a planar Josephson junction
similarity 0.90A. Banerjee et al.
Source status unknown — claims are unverified