Fault-tolerant detection of a quantum error
arXiv:1803.00102 · doi:10.1126/science.aat3996
Abstract
A critical component of any quantum error-correcting scheme is detection of errors by using an ancilla system. However, errors occurring in the ancilla can propagate onto the logical qubit, irreversibly corrupting the encoded information. We demonstrate a fault-tolerant error-detection scheme that suppresses spreading of ancilla errors by a factor of 5, while maintaining the assignment fidelity. The same method is used to prevent propagation of ancilla excitations, increasing the logical qubit dephasing time by an order of magnitude. Our approach is hardware-efficient, as it uses a single multilevel transmon ancilla and a cavity-encoded logical qubit, whose interaction is engineered in situ by using an off-resonant sideband drive. The results demonstrate that hardware-efficient approaches that exploit system-specific error models can yield advances toward fault-tolerant quantum computation.
References in corpus (16)
- Surface codes: Towards practical large-scale quantum computation
- Decoherence Free Subspaces for Quantum Computation
- Dynamically protected cat-qubits: a new paradigm for universal quantum computation
- Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms
- Restrictions on Transversal Encoded Quantum Gate Sets
- Resilient Quantum Computation: Error Models and Thresholds
- Fault-Tolerant Error Correction with Efficient Quantum Codes
- Hardware-efficient autonomous quantum error correction
- Tracking Photon Jumps with Repeated Quantum Non-Demolition Parity Measurements
- Experimental demonstration of fault-tolerant state preparation with superconducting qubits
- Subsystem fault tolerance with the Bacon-Shor code
- Fault-tolerant quantum error detection
- Suppression of photon shot noise dephasing in a tunable coupling superconducting qubit
- A CNOT gate between multiphoton qubits encoded in two cavities
- Microwave-Induced Amplitude and Phase Tunable Qubit-Resonator Coupling in Circuit Quantum Electrodynamics
- Error-transparent quantum gates for small logical qubit architectures
Cited by in corpus (118)
- Circuit Quantum Electrodynamics
- Superconducting Qubits: Current State of Play
- Real-time quantum error correction beyond break-even
- Superconducting Quantum Computing: A Review
- Demonstration of quantum error correction and universal gate set on a binomial bosonic logical qubit
- Quantum Information Scrambling in a Superconducting Qutrit Processor
- Fault-tolerant operation of a logical qubit in a diamond quantum processor
- Bosonic quantum error correction codes in superconducting quantum circuits
- Fast Universal Control of an Oscillator with Weak Dispersive Coupling to a Qubit
- All-Gaussian universality and fault tolerance with the Gottesman-Kitaev-Preskill code
- Repetition Cat Qubits for Fault-Tolerant Quantum Computation
- Quantum computing with rotation-symmetric bosonic codes
- Single-loop realization of arbitrary non-adiabatic holonomic single-qubit quantum gates in a superconducting circuit
- Stabilized Cat in Driven Nonlinear Cavity: A Fault-Tolerant Error Syndrome Detector
- Quantum information processing with bosonic qubits in circuit QED
- Implementation of Conditional-Phase Gates based on tunable ZZ-Interactions
- Towards Scalable Bosonic Quantum Error Correction
- Quantum Error Correction with the Gottesman-Kitaev-Preskill Code
- Decoding quantum errors with subspace expansions
- Quantum control of bosonic modes with superconducting circuits
- Error-transparent operations on a logical qubit protected by quantum error correction
- Quantum Computation Based on Quantum Adiabatic Bifurcations of Kerr-Nonlinear Parametric Oscillators
- Experimental high-dimensional Greenberger-Horne-Zeilinger entanglement with superconducting transmon qutrits
- Hardware-efficient quantum error correction via concatenated bosonic qubits
- Superconducting cavity qubit with tens of milliseconds single-photon coherence time
- Parity measurement in the strong dispersive regime of circuit quantum acoustodynamics
- Error-corrected gates on an encoded qubit
- Low overhead fault-tolerant quantum error correction with the surface-GKP code
- High-fidelity measurement of qubits encoded in multilevel superconducting circuits
- Direct characteristic-function tomography of quantum states of the trapped-ion motional oscillator
- Error-detected state transfer and entanglement in a superconducting quantum network
- Analog quantum control of magnonic cat states on-a-chip by a superconducting qubit
- Dual-rail encoding with superconducting cavities
- Engineering bilinear mode coupling in circuit QED: Theory and experiment
- Multimode photon blockade
- Fault-tolerant preparation of approximate GKP states
- Experimental Realization of Two Qutrits Gate with Tunable Coupling in Superconducting Circuits
- The Parity Operator: applications in quantum metrology
- Fast parametric two-qubit gates with suppressed residual interaction using a parity-violated superconducting qubit
- Quantum Error Correction of Qudits Beyond Break-even
- High-fidelity software-defined quantum logic on a superconducting qudit
- Emulating quantum teleportation of a Majorana zero mode qubit
- Demonstration of an All-Microwave Controlled-Phase Gate between Far Detuned Qubits
- Approximate Autonomous Quantum Error Correction with Reinforcement Learning
- Repetitive quantum non-demolition measurement and soft decoding of a silicon spin qubit
- Breaking Adiabatic Quantum Control with Deep Learning
- Path-Independent Quantum Gates with Noisy Ancilla
- Qubit Measurement by Multichannel Driving
- Encoding qubits in multimode grid states
- Squeezing and multimode entanglement of surface acoustic wave phonons
- Quantum capacity and codes for the bosonic loss-dephasing channel
- Advances in Bosonic Quantum Error Correction with Gottesman-Kitaev-Preskill Codes: Theory, Engineering and Applications
- Nonperturbative Waveguide Quantum Electrodynamics
- Bootstrapping quantum process tomography via a perturbative ansatz
- Towards highly efficient broadband superconducting quantum memory
- Quantum Rabi oscillations in coherent and in mesoscopic Schrödinger "cat" field states
- Introduction to Quantum Error Correction and Fault Tolerance
- Towards long-distance quantum networks with superconducting processors and optical links
- Hybrid Oscillator-Qubit Quantum Processors: Instruction Set Architectures, Abstract Machine Models, and Applications
- Tunable refrigerator for non-linear quantum electric circuits
- Autoparametric resonance extending the bit-flip time of a cat qubit up to 0.3 s
- Performance of teleportation-based error correction circuits for bosonic codes with noisy measurements
- Achieving fault tolerance against amplitude-damping noise
- Designing Kerr Interactions for Quantum Information Processing via Counterrotating Terms of Asymmetric Josephson-Junction Loops
- Efficient quantum error correction of dephasing induced by a common fluctuator
- Strong parametric dispersive shifts in a statically decoupled multi-qubit cavity QED system
- Simulating nonnative cubic interactions on noisy quantum machines
- Experimental implementation of a Raman-assisted six-quanta process
- Autonomous Quantum State Transfer by Dissipation Engineering
- Concatenation of the Gottesman-Kitaev-Preskill code with the XZZX surface code
- The Near-optimal Performance of Quantum Error Correction Codes
- Fault-Tolerant Computing with Single Qudit Encoding
- Photon-number-dependent effective Lamb shift
- Tuneable and weakly-invasive probing of a superconducting resonator based onelectromagnetically induced transparency
- Quantum communication on the bosonic loss-dephasing channel
- Robust Macroscopic Schrödinger's Cat on a Nucleus
- Photon-Number-Dependent Hamiltonian Engineering for Cavities
- Designing good bosonic quantum codes via creating destructive interference
- Generalized figure of merit for qubit readout
- Engineering Arbitrary Hamiltonians in Phase Space
- Quantum control of continuous systems via nonharmonic potential modulation
- Logical measurement-based quantum computation in circuit-QED
- Quasi-Probabilistic Readout Correction of Mid-Circuit Measurements for Adaptive Feedback via Measurement Randomized Compiling
- Testing a Quantum Error-Correcting Code on Various Platforms
- Preparing Schrödinger cat states in a microwave cavity using a neural network
- Dissipative protection of a GKP qubit in a high-impedance superconducting circuit driven by a microwave frequency comb
- Low-temperature environments for quantum computation and quantum simulation
- Ultrafast non-destructive measurement of the quantum state of light using free electrons
- Hybrid cat-transmon architecture for scalable, hardware-efficient quantum error correction
- Designing fast quantum gates using optimal control with a reinforcement-learning ansatz
- Perturbative Framework for Engineering Arbitrary Floquet Hamiltonian
- Fast ZZ-Free Entangling Gates for Superconducting Qubits Assisted by a Driven Resonator
- The superconducting circuit companion -- an introduction with worked examples
- Outcome determinism in measurement-based quantum computation with qudits
- Quantum process tomography of continuous-variable gates using coherent states
- Stabilization of cat-state manifolds using nonlinear reservoir engineering
- Effect of Decoherence for Gate Operations on a Superconducting Bosonic Qubit
- Optimize quantum simulation using a force-gradient integrator
- Quantum-Enhanced Dark Matter Search Using Cat States
- 0D-2D Heterostructure for making very Large Quantum Registers using itinerant Bose-Einstein Condensate of Excitons
- Engineering Bosonic Codes with Quantum Lattice Gates
- Recovering Quantum Coherence of a Cavity Qubit Coupled to a Noisy Ancilla through Real-Time Feedback
- Improved performance of the Bacon-Shor code with Steane's syndrome extraction method
- Energy preserving evolutions over Bosonic systems
- Cross-resonance control of an oscillator with an auxiliary fluxonium qubit
- In-situ tunable interaction with an invertible sign between a fluxonium and a post cavity
- Loss-tolerant concatenated Bell-state measurement with encoded coherent-state qubits for long-range quantum communication
- Investigating the Exchange of Ising Chains on a Digital Quantum Computer
- Floquet-engineered fast SNAP gates in weakly coupled circuit-QED systems
- General Approach to Error Detection of Bosonic Codes via Phase Estimation
- Using a Kerr interaction for GKP magic state preparation
- Engineering Non-Gaussian Bosonic Gates through Quantum Signal Processing
- Microwave-activated high-fidelity three-qubit gate scheme for fixed-frequency superconducting qubits
- Generalized Parity Measurements and Efficient Large Multi-component Cat State Preparation with Quantum Signal Processing
- Circuit-level fault tolerance of cat codes
- Deterministic Gaussian conversion protocols for non-Gaussian single-mode resources
- Quantum Error Correction with Superpositions of Squeezed Fock States
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