Gate-tunable superconducting diode effect in a three-terminal Josephson device

M Gupta, GV Graziano, M Pendharkar, JT Dong… - Nature …, 2023 - nature.com
The phenomenon of non-reciprocal critical current in a Josephson device, termed the
Josephson diode effect, has garnered much recent interest. Realization of the diode effect …

Double-Fourier engineering of Josephson energy-phase relationships applied to diodes

AM Bozkurt, J Brookman, V Fatemi, AR Akhmerov - SciPost Physics, 2023 - scipost.org
We present a systematic method to design arbitrary energy-phase relations using parallel
arms of two series Josephson tunnel junctions each. Our approach employs Fourier …

Multiterminal inverse AC Josephson effect

EG Arnault, TFQ Larson, A Seredinski, L Zhao… - Nano …, 2021 - ACS Publications
When a Josephson junction is exposed to microwave radiation, it undergoes the inverse AC
Josephson effect─ the phase of the junction locks to the drive frequency. As a result, the I–V …

Quantum interferometer for quartets in superconducting three-terminal Josephson junctions

R Mélin, D Feinberg - Physical Review B, 2023 - APS
An interferometric device is proposed in order to analyze the quartet mode in biased three-
terminal Josephson junctions (TTJs), and to provide experimental evidence for the …

Transconductance quantization in a topological Josephson tunnel junction circuit

L Peyruchat, J Griesmar, JD Pillet, ÇÖ Girit - Physical Review Research, 2021 - APS
Superconducting circuits incorporating Josephson tunnel junctions are widely used for
fundamental research as well as for applications in fields such as quantum information and …

Multi-terminal Josephson junctions: A road to topological flux networks

LP Gavensky, G Usaj, CA Balseiro - Europhysics Letters, 2023 - iopscience.iop.org
Multi-terminal Josephson junctions were recently proposed as a versatile and tunable
platform to emulate topological Bloch-like Hamiltonians in arbitrary dimensions. In this …

Proposal for detecting the -shifted Cooper quartet supercurrent

R Mélin, R Danneau, CB Winkelmann - Physical Review Research, 2023 - APS
The multiterminal Josephson effect aroused considerable interest recently, in connection
with theoretical and experimental evidence for correlations among Cooper pairs, that is, the …

Spectral Signatures of Nontrivial Topology in a Superconducting Circuit

L Peyruchat, RH Rodriguez, JL Smirr, R Leone… - Physical Review X, 2024 - APS
Topology, like symmetry, is a fundamental concept in understanding general properties of
physical systems. In condensed matter, nontrivial topology may manifest itself as singular …

Ground-state quantum geometry in superconductor–quantum dot chains

RL Klees, JC Cuevas, W Belzig, G Rastelli - Physical Review B, 2021 - APS
Multiterminal Josephson junctions constitute engineered topological systems in arbitrary
synthetic dimensions defined by the superconducting phases. Microwave spectroscopy …

Quantum circuits with multiterminal Josephson-Andreev junctions

FJ Matute-Cañadas, L Tosi, AL Yeyati - PRX Quantum, 2024 - APS
We explore superconducting quantum circuits where several leads are simultaneously
connected beyond the tunneling regime, such that the fermionic structure of Andreev bound …