Signatures of interactions in the Andreev spectrum of nanowire Josephson junctions

Abstract

We performed microwave spectroscopy of an InAs nanowire between superconducting contacts implementing a finite-length, multi-channel Josephson weak link. Certain features in the spectra, such as the splitting by spin-orbit interactions of the transition lines among Andreev states, have been already understood in terms of non-interacting models. However, we identify here additional transitions, which evidence the presence of Coulomb interactions. By combining experimental measurements and model calculations, we reach a qualitative understanding of these very rich Andreev spectra.

(6+8) pages, (4+10) figures; added figure in SM

References in corpus (9)

• Circuit Quantum Electrodynamics
• Coherent manipulation of an Andreev spin qubit
• Critical Current 0-$\pi$ Transition in Designed Josephson Quantum Dot Junctions
• Andreev spin qubits in multichannel Rashba nanowires
• Conduction Channels of an InAs-Al nanowire Josephson weak link
• Circuit-QED with phase-biased Josephson weak links
• Microwave response of an Andreev bound state
• Josephson effect through a quantum dot array
• Spin-blockade qubit in a superconducting junction

Cited by in corpus (39)

• Phase-dependent Andreev molecules and superconducting gap closing in coherently coupled Josephson junctions
• Pair excitations of a quantum spin on a proximitized superconductor
• Microwave spectroscopy of interacting Andreev spins
• Anomalous Josephson current through a driven double quantum dot
• Progress in superconductor-semiconductor topological Josephson junctions
• Fully in-situ InAs nanowire Josephson junctions by selective-area growth and shadow evaporation
• Microwave spectroscopy of Andreev states in InAs nanowire-based hybrid junctions using a flip-chip layout
• Flip-chip-based microwave spectroscopy of Andreev bound states in a planar Josephson junction
• Blueprint for all-to-all connected superconducting spin qubits
• Dynamical parity selection in superconducting weak links
• Direct microwave spectroscopy of Andreev bound states in planar Ge Josephson junctions
• Zeeman and Orbital Driven Phase Transitions in Planar Josephson Junctions
• Dissipationless Nonlinearity in Quantum Material Josephson Diodes
• Ground state phase diagram and "parity flipping'' microwave transitions in a gate-tunable Josephson Junction
• Few-mode to mesoscopic junctions in gatemon qubits
• Full Counting Statistics of Yu-Shiba-Rusinov Bound States
• Microwave-induced conductance replicas in hybrid Josephson junctions without Floquet-Andreev states
• Gate-Compatible Circuit Quantum Electrodynamics in a Three-Dimensional Cavity Architecture
• Ground state topology of a four-terminal superconducting double quantum dot
• Opportunities for the direct manipulation of a phase-driven Andreev spin qubit
• Microwave Signatures of Topological Superconductivity in Planar Josephson Junctions
• Many-body quantum dynamics of spin-orbit coupled Andreev states in a Zeeman field
• Andreev spin relaxation time in a shadow-evaporated InAs weak link
• Microwave Excitation of Atomic Scale Superconducting Bound States
• Topological Josephson Junctions in the Integer Quantum Hall Regime
• Microwave Andreev bound state spectroscopy in a semiconductor-based Planar Josephson junction
• YSR Bond Qubit in a Double Quantum Dot with cQED Operation
• Fermionic Quantum Simulation on Andreev Bound State Superlattices
• Fluxoid valve effect in full-shell nanowire Josephson junctions
• Approaching the ultrastrong coupling regime between an Andreev level and a microwave resonator
• Effects of the measurement power on states discrimination and dynamics in a circuit-QED experiment
• Error threshold in active steering protocols for few-qubit systems
• Finite Length Effects and Coulomb Interaction in Ge Quantum Well-Based Josephson Junctions Probed with Microwave Spectroscopy
• Interplay between evanescent scattering modes and finite dispersion in superconducting junctions
• Fluxoid solitons in superconducting tapered tubes and bottlenecks
• Microwave susceptibility observation of interacting many-body Andreev states
• Andreev qubit readout from dynamic interference supercurrent
• Slave-spin approach to the Anderson-Josephson quantum dot
• Effects of electron-electron interaction and spin-orbit coupling on Andreev pair qubits in quantum dot Josephson junctions