Fast charge sensing of a cavity-coupled double quantum dot using a Josephson parametric amplifier

Abstract

We demonstrate fast readout of a double quantum dot (DQD) that is coupled to a superconducting resonator. Utilizing parametric amplification in a nonlinear operational mode, we improve the signal-to-noise ratio (SNR) by a factor of 2000 compared to the situation with the parametric amplifier turned off. With an integration time of 400 ns we achieve a SNR of 76. By studying SNR as a function of the integration time we extract an equivalent charge sensitivity of 8 x 10^{-5} e/root(Hz). The high SNR allows us to acquire a DQD charge stability diagram in just 20 ms. At such a high data rate, it is possible to acquire charge stability diagrams in a live "video-mode," enabling real time tuning of the DQD confinement potential.

Related papers at http://pettagroup.princeton.edu

References in corpus (15)

• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Amplification and squeezing of quantum noise with a tunable Josephson metamaterial
• Quantum feedback control of a superconducting qubit: Persistent Rabi oscillations
• Circuit Quantum Electrodynamics with a Spin Qubit
• Observation of quantum jumps in a superconducting artificial atom
• Direct Measurement of the Spin-Orbit Interaction in a Two-Electron InAs Nanowire Quantum Dot
• Resonantly phase-matched Josephson junction traveling wave parametric amplifier
• Quantum limited amplification and entanglement in coupled nonlinear resonators
• Initialization by measurement of a two-qubit superconducting circuit
• Nonlinearities and Parametric Amplification in Superconducting Coplanar Waveguide Resonators
• Quantum limits on phase-preserving linear amplifiers
• Observation of Entanglement Between Itinerant Microwave Photons and a Superconducting Qubit
• Mesoscopic admittance of a double quantum dot
• High Resolution Spectroscopy of Two-Dimensional Electron Systems
• A Radio Frequency Charge Parity Meter

Cited by in corpus (74)

• Semiconductor Spin Qubits
• Quantum CNOT Gate for Spins in Silicon
• Milestones toward Majorana-based quantum computing
• Reaching the quantum limit of sensitivity in electron spin resonance
• Superconductor-semiconductor hybrid cavity quantum electrodynamics
• Rapid high-fidelity gate-based spin read-out in silicon
• Semiconductor Quantum Computation
• Review of performance metrics of spin qubits in gated semiconducting nanostructures
• Broadband parametric amplification with impedance engineering: Beyond the gain-bandwidth product
• A singlet triplet hole spin qubit in planar Ge
• Probing quantum devices with radio-frequency reflectometry
• Electron Spin Resonance at the Level of 10000 Spins Using Low Impedance Superconducting Resonators
• A photonic crystal Josephson traveling wave parametric amplifier
• Perspective on traveling wave microwave parametric amplifiers
• Hybrid quantum device based on NV centers in diamond nanomechanical resonators plus superconducting waveguide cavities
• Fast gate-based readout of silicon quantum dots using Josephson parametric amplification
• Effect of higher-order nonlinearities on amplification and squeezing in Josephson parametric amplifiers
• Radio-frequency capacitive gate-based sensing
• Combining Topological Hardware and Topological Software: Color Code Quantum Computing with Topological Superconductor Networks
• Cavity QED with hybrid nanocircuits: from atomic-like physics to condensed matter phenomena
• Fast and high-fidelity state preparation and measurement in triple-quantum-dot spin qubits
• Sensitive radio-frequency measurements of a quantum dot by tuning to perfect impedance matching
• Dispersive readout of valley splittings in cavity-coupled silicon quantum dots
• Computer-automated tuning of semiconductor double quantum dots into the single-electron regime
• A CMOS dynamic random access architecture for radio-frequency readout of quantum devices
• Efficiently measuring a quantum device using machine learning
• Computer-automated tuning procedures for semiconductor quantum dot arrays
• A logical qubit in a linear array of semiconductor quantum dots
• Fault-Tolerant Quantum Computing in the Pauli or Clifford Frame with Slow Error Diagnostics
• Braiding Majorana zero modes using quantum dots
• Photon Assisted Tunneling of Zero Modes in a Majorana Wire
• Direct cavity detection of Majorana pairs
• Large dispersive interaction between a CMOS double quantum dot and microwave photons
• Microwave detection of electron-phonon interactions in a cavity-coupled double quantum dot
• Readout of Majorana parity states using a quantum dot
• Quantum noise limited microwave amplification using a graphene Josephson junction
• Double Quantum Dot Floquet Gain Medium
• Rapid detection of coherent tunneling in an InAs nanowire quantum dot through dispersive gate sensing
• Spin digitizer for high-fidelity readout of a cavity-coupled silicon triple quantum dot
• Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators
• Radio-frequency methods for Majorana-based quantum devices: fast charge sensing and phase diagram mapping
• Higher order non-linear effects in a Josephson parametric amplifier
• The Role of Multilevel Landau-Zener Interference in Extreme Harmonic Generation
• Radio-frequency reflectometry of a quantum dot using an ultra-low-noise SQUID amplifier
• Small-signal equivalent circuit for double quantum dots at low-frequencies
• Three-Wave Mixing Quantum-Limited Kinetic Inductance Parametric Amplifier operating at 6 Tesla and near 1 Kelvin
• Parametric exploration of zero-energy modes in three-terminal InSb-Al nanowire devices
• Suppressing quasiparticle poisoning with a voltage-controlled filter
• Detector Array Readout with Traveling Wave Amplifiers
• Parametric amplification and squeezing with an ac- and dc-voltage biased superconducting junction
• Single-shot readout of multiple donor electron spins with a gate-based sensor
• Variable and orbital-dependent spin-orbit field orientations in a InSb double quantum dot characterized via dispersive gate sensing
• Dispersive readout of reconfigurable ambipolar quantum dots in a silicon-on-insulator nanowire
• Microwave-resonator-detected excited-state spectroscopy of a double quantum dot
• Multi-module microwave assembly for fast read-out and charge noise characterization of silicon quantum dots
• Modular Autonomous Virtualization System for Two-Dimensional Semiconductor Quantum Dot Arrays
• Fingerprints of Qubit Noise in Transient Cavity Transmission
• Approaching ideal visibility in singlet-triplet qubit operations using energy-selective tunneling-based Hamiltonian estimation
• A three-dimensional Josephson parametric amplifier
• Quantum Dot Source-Drain Transport Response at Microwave Frequencies
• Gate reflectometry in dense quantum dot arrays
• Current detection using a Josephson parametric upconverter
• Gate voltage dependence of noise distribution in radio-frequency reflectometry in gallium arsenide quantum dots
• Selective Single and Double-Mode Quantum Limited Amplifier
• Cryogenic amplification of image-charge detection for readout of quantum states of electrons on liquid helium
• Experimental online quantum dots charge autotuning using neural networks
• All rf-based tuning algorithm for quantum devices using machine learning
• Observation and mitigation of microwave echoes from dielectric defects in Josephson traveling wave amplifiers
• Charge state estimation in quantum dots using a Bayesian approach
• Photoionization detection of a single Er${}^{3+}$ ion with sub-100-ns time resolution
• Superconducting Cavity-Based Sensing of Band Gaps in 2D Materials
• Fast raster scan multiplexed charge stability measurements toward high-throughput quantum dot array calibration
• Noninvasive and nonadiabatic quantum Maxwell demon
• Rapid Autotuning of a SiGe Quantum Dot into the Single-Electron Regime with Machine Learning and RF-Reflectometry FPGA-Based Measurements