Non-Gaussian noise spectroscopy with a superconducting qubit sensor

Abstract

Accurate characterization of the noise influencing a quantum system of interest has far-reaching implications across quantum science, ranging from microscopic modeling of decoherence dynamics to noise-optimized quantum control. While the assumption that noise obeys Gaussian statistics is commonly employed, noise is generically non-Gaussian in nature. In particular, the Gaussian approximation breaks down whenever a qubit is strongly coupled to discrete noise sources or has a non-linear response to the environmental degrees of freedom. Thus, in order to both scrutinize the applicability of the Gaussian assumption and capture distinctive non-Gaussian signatures, a tool for characterizing non-Gaussian noise is essential. Here, we experimentally validate a quantum control protocol which, in addition to the spectrum, reconstructs the leading higher-order spectrum of engineered non-Gaussian dephasing noise using a superconducting qubit as a sensor. This first experimental demonstration of non-Gaussian noise spectroscopy represents a major step toward demonstrating a complete spectral estimation toolbox for quantum devices.

arXiv comment21 pages, 12 figures

References in corpus (41)

• Quantum Computing in the NISQ era and beyond
• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
• Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing
• A >99.9%-fidelity quantum-dot spin qubit with coherence limited by charge noise
• Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
• Simple pulses for elimination of leakage in weakly nonlinear qubits
• Storing quantum information for 30 seconds in a nanoelectronic device
• Optimized Dynamical Decoupling in a Model Quantum Memory
• 1/f noise: implications for solid-state quantum information
• The Flux Qubit Revisited to Enhance Coherence and Reproducibility
• How to Enhance Dephasing Time in Superconducting Qubits
• Decoherence in Josephson Qubits from Junction Resonances
• Electrometry Using Coherent Exchange Oscillations in a Singlet-Triplet-Qubit
• Dynamical decoupling noise spectroscopy
• Single-qubit quantum memory exceeding $10$-minute coherence time
• Spectroscopy of Surface-Induced Noise Using Shallow Spins in Diamond
• Tunable Superconducting Qubits with Flux-Independent Coherence
• Dephasing of solid-state qubits at optimal points
• Observation of directly interacting coherent two-level systems in a solid
• Qubit noise spectroscopy for non-Gaussian dephasing environments
• Rotating-frame relaxation as a noise spectrum analyzer of a superconducting qubit undergoing driven evolution
• Observation of classical-quantum crossover of 1/f flux noise and its paramagnetic temperature dependence
• Measurement of the Noise Spectrum Using a Multiple-Pulse Sequence
• Assessment of a silicon quantum dot spin qubit environment via noise spectroscopy
• A General Transfer-Function Approach to Noise Filtering in Open-Loop Quantum Control
• Distinguishing coherent and thermal photon noise in a circuit QED system
• Protecting a superconducting qubit from energy decay by selection rule engineering
• Dynamical suppression of 1/f noise processes in qubit systems
• Imaging mesoscopic nuclear spin noise with a diamond magnetometer
• Flux qubit noise spectroscopy using Rabi oscillations under strong driving conditions
• Dynamical suppression of telegraph and 1/f noise due to quantum bistable fluctuator
• Dynamical decoupling leads to improved scaling in noisy quantum metrology
• Decoherence spectroscopy with individual two-level tunneling defects
• Application of optimal band-limited control protocols to quantum noise sensing
• Single-Spin Spectrum-Analyzer for a Strongly Coupled Environment
• Qubits as spectrometers of dephasing noise
• Optimally band-limited spectroscopy of control noise using a qubit sensor
• Non-Gaussian dephasing in flux qubits due to 1/f-noise
• Spectroscopy of a Cooper-Pair Box Coupled to a Two-Level System Via Charge and Critical Current
• Ramsey Interferometry in Correlated Quantum Noise Environments

Cited by in corpus (59)

• A Quantum Engineer's Guide to Superconducting Qubits
• t$|$ket$⟩$ : A Retargetable Compiler for NISQ Devices
• Noisy intermediate-scale quantum computers
• Two-qubit spectroscopy of spatiotemporally correlated quantum noise in superconducting qubits
• Long-distance transmon coupler with CZ gate fidelity above $99.8\%$
• Quantum Crosstalk Robust Quantum Control
• Effects of Dynamical Decoupling and Pulse-level Optimizations on IBM Quantum Computers
• Beyond Quantum Noise Spectroscopy: modelling and mitigating noise with quantum feature engineering
• Joint quantum estimation of loss and nonlinearity in driven-dissipative Kerr resonators
• Multi-level Quantum Noise Spectroscopy
• Designing Filter Functions of Frequency-Modulated Pulses for High-Fidelity Two-Qubit Gates in Ion Chains
• Simultaneous spectral estimation of dephasing and amplitude noise on a qubit sensor via optimally band-limited control
• Extending comb-based spectral estimation to multiaxis quantum noise
• Quantum nonlinear spectroscopy of single nuclear spins
• Trispectrum reconstruction of non-Gaussian noise
• Influence of nuclear spin polarization on spin echo signal of NV center qubit
• Thermodynamics of decoherence
• Spectral characterization of non-Gaussian quantum noise: Keldysh approach and application to photon shot noise
• Impact of correlations and heavy-tails on quantum error correction
• Noise Sensing via Stochastic Quantum Zeno
• Learning Noise via Dynamical Decoupling of Entangled Qubits
• Resource-efficient digital characterization and control of classical non-Gaussian noise
• Deep learning enhanced noise spectroscopy of a spin qubit environment
• Characterizing low-frequency qubit noise
• Fourier Transform Noise Spectroscopy
• Relationship between subjecting the qubit to dynamical decoupling and to a sequence of projective measurements
• Noise Detection with Spectator Qubits and Quantum Feature Engineering
• Spectroscopy of classical environmental noise with a qubit subjected to projective measurements
• Machine learning classification of non-Markovian noise disturbing quantum dynamics
• SPAM-Robust Multi-axis Quantum Noise Spectroscopy in Temporally Correlated Environments
• Dephasing dynamics of an impurity coupled to an anharmonic environment
• Path integral framework for characterizing and controlling decoherence induced by non-stationary environments on a quantum probe
• Nonergodic measurements of qubit frequency noise
• Non-perturbative treatment of open-system multi-time expectation values in Gaussian bosonic environments
• Self-consistent noise characterization of quantum devices
• High-Order Qubit Dephasing at Sweet Spots by Non-Gaussian Fluctuators: Symmetry Breaking and Floquet Protection
• A Quantum Spectrometer for Arbitrary Noise
• Digital noise spectroscopy with a quantum sensor
• 1/f noise in quantum nanoscience
• Protecting logical qubits with dynamical decoupling
• Noise-specific beats in the higher-level Ramsey curves of a transmon qubit
• Quantum decoherence dynamics in stochastically fluctuating environments
• Sensing Out-of-Equilibrium and Quantum Non-Gaussian environments via induced Time-Reversal Symmetry Breaking on the quantum-probe dynamics
• Open quantum systems in thermal non-ergodic environments
• Characterizing the magnetic noise power spectrum of dark spins in diamond
• Decoherence reduction via continuous dynamical decoupling: Analytical study of the role of the noise spectrum
• Role of the filter functions in noise spectroscopy
• Tutorial on Superconducting Quantum Circuits: From Basics to Applications
• Open-loop quantum control of small-size networks for high-order cumulants and cross-correlations sensing
• Intrinsic and induced quantum quenches for enhancing qubit-based quantum noise spectroscopy
• Estimating quantum Markov chains using coherent absorber post-processing and pattern counting estimator
• Engineering Precise and Robust Effective Hamiltonians
• Numerically exact quantum dynamics with tensor networks: Predicting the decoherence of interacting spin systems
• Sensing microscopic noise events by frequent quantum measurements
• Robust applicability of continuous dynamical decoupling to decoherence reduction in longitudinal and transverse-noise settings: The role of anisotropy
• Neural Network Based Qubit Environment Characterization
• Quantum Computation
• Efficient learning and optimizing non-Gaussian correlated noise in digitally controlled qubit systems
• Universal Dephasing Noise Injection via Schrodinger Wave Autoregressive Moving Average Models