Determination of the current-phase relation of an InAs 2DEG Josephson junction with a microwave resonator

Abstract

Semiconductor-superconductor hybrid nanocircuits are of high interest due to their potential applications in quantum computing. Semiconductors with a strong spin-orbit coupling and large $g$-factor are particularly attractive since they are the basic building blocks of novel qubit architectures. However, for the engineering of these complex circuits, the building blocks must be characterized in detail. We have investigated a Josephson junction where the weak link is a two-dimensional electron gas (2DEG) hosted in an InAs/InGaAs heterostructure grown on a GaAs substrate. We employed the in-situ epitaxially grown Al layer as superconducting contacts to form an rf SQUID, and also to create a microwave resonator for sensing the Josephson inductance. We determined the gate-dependent current-phase relation, and observed supercurrent interference in out-of-plane magnetic fields. With the application of an in-plane magnetic field, we induced asymmetry in the interference pattern, which was found to be anisotropic in the device plane.

References in corpus (64)

• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Superconducting Qubits: Current State of Play
• Majorana Zero Modes and Topological Quantum Computation
• Majorana bound states in a coupled quantum-dot hybrid-nanowire system
• Spin-resolved Andreev levels and parity crossings in hybrid superconductor-semiconductor nanostructures
• From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
• A Semiconductor Nanowire-Based Superconducting Qubit
• A Josephson junction supercurrent diode
• Evidence of topological superconductivity in planar Josephson junctions
• Revealing the electronic structure of a carbon nanotube carrying a supercurrent
• Realization of a minimal Kitaev chain in coupled quantum dots
• Efficient and robust analysis of complex scattering data under noise in microwave resonators
• A Quantum Dot in the Kondo Regime Coupled to Superconductors
• Josephson ${\phi }_0$-junction in nanowire quantum dots
• High Kinetic Inductance Superconducting Nanowire Resonators for Circuit QED in a Magnetic Field
• Realization of microwave quantum circuits using hybrid superconducting-semiconducting nanowire Josephson elements
• How to realize a robust practical Majorana chain in a quantum dot-superconductor linear array
• An analysis method for asymmetric resonator transmission applied to superconducting devices
• Materials loss measurements using superconducting microwave resonators
• Superconducting Gatemon Qubit based on a Proximitized Two-Dimensional Electron Gas
• Parity qubits and poor man's Majorana bound states in double quantum dots
• Exciting Andreev pairs in a superconducting atomic contact
• Coherent manipulation of an Andreev spin qubit
• Spin-orbit splitting of Andreev states revealed by microwave spectroscopy
• Spin-Orbit induced phase-shift in Bi${}_2$Se${}_3$ Josephson junctions
• A Josephson phase battery
• Gate Controlled Anomalous Phase Shift in Al/InAs Josephson Junctions
• Measurement of the current-phase relation of superconducting atomic contacts
• Phase signature of topological transition in Josephson Junctions
• Microwave spectroscopy of spinful Andreev bound states in ballistic semiconductor Josephson junctions
• Direct manipulation of a superconducting spin qubit strongly coupled to a transmon qubit
• Tunnelling Spectroscopy of Andreev States in Graphene
• Current-phase relations of few-mode InAs nanowire Josephson junctions
• Tuning Yu-Shiba-Rusinov States in a Quantum Dot
• Current-phase relation of ballistic graphene Josephson junctions
• Continuous monitoring of a trapped, superconducting spin
• A two-site Kitaev chain in a two-dimensional electron gas
• Anomalous Fraunhofer Interference in Epitaxial Superconductor-Semiconductor Josephson Junctions
• Observation of Josephson Harmonics in Tunnel Junctions
• Magnetic hysteresis effects in superconducting coplanar microwave resonators
• Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states
• Magnetic field tuning of coplanar waveguide resonators
• Superconducting Diode Effect Sign Change in Epitaxial Al-InAs Josepshon Junctions
• Local and Nonlocal Transport Spectroscopy in Planar Josephson Junctions
• Link between supercurrent diode and anomalous Josephson effect revealed by gate-controlled interferometry
• Gate-tunable, superconductor-semiconductor parametric amplifier
• Strong tunable coupling between two distant superconducting spin qubits
• A gate tunable transmon qubit in planar Ge
• Superconducting resonators with voltage-controlled frequency and nonlinearity
• Detecting induced $p\pm ip$ pairing at the Al-InAs interface with a quantum microwave circuit
• Phase-dependent microwave response of a graphene Josephson junction
• Linear AC Response of Diffusive SNS Junctions
• Tunneling spectroscopy of graphene nanodevices coupled to large-gap superconductors
• Compact SQUID realized in a double layer graphene heterostructure
• Flip-chip-based microwave spectroscopy of Andreev bound states in a planar Josephson junction
• Coherence-enhanced, phase-dependent dissipation in long SNS Josephson junctions: revealing Andreev Bound States dynamics
• Quasiparticle dynamics in epitaxial Al-InAs planar Josephson junctions
• Zeeman and Orbital Driven Phase Transitions in Planar Josephson Junctions
• Metamorphic InAs/InGaAs QWs with electron mobilities exceeding $7\times 10^{5}c{m}^2/Vs$
• Microwave Sensing of Andreev Bound States in a Gate-Defined Superconducting Quantum Point Contact
• Gatemonium: A Voltage-Tunable Fluxonium
• Near-surface InAs 2DEG on a GaAs substrate: characterization and superconducting proximity effect
• Spin-filtered measurements of Andreev bound states
• Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field