Minimum quantum run-time characterization and calibration via restless measurements with dynamic repetition rates
arXiv:2202.06981 · doi:10.1103/PhysRevApplied.17.064061
Abstract
The performance of a quantum processor depends on the characteristics of the device and the quality of the control pulses. Characterizing cloud-based quantum computers and calibrating the pulses that control them is necessary for high-fidelity operations. However, this time intensive task eats into the availability of the device. Here, we show restless measurements with a dynamic repetition rate that speed-up calibration and characterization tasks. Randomized benchmarking is performed 5.3 times faster on the quantum device than when an active reset is used and without discarding any data. In addition, we calibrate a qubit with parameter scans and error-amplifying gate sequences and show speed-ups of up to a factor of forty on the quantum device over active reset. Finally, we present a methodology to perform restless quantum process tomography that mitigates restless state preparation errors. These results reduce the footprint of characterization and calibration tasks. Quantum computers can thus either spend more time running applications or run calibrations more often to maintain gate fidelity.
References in corpus (62)
- Quantum Machine Learning
- Surface codes: Towards practical large-scale quantum computation
- Circuit Quantum Electrodynamics
- A Quantum Engineer's Guide to Superconducting Qubits
- Error mitigation for short-depth quantum circuits
- Extending the computational reach of a noisy superconducting quantum processor
- Simple pulses for elimination of leakage in weakly nonlinear qubits
- Training Schrödinger's cat: quantum optimal control
- Robust randomized benchmarking of quantum processes
- Validating quantum computers using randomized model circuits
- Quantum optimization using variational algorithms on near-term quantum devices
- Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms
- Efficient Z-Gates for Quantum Computing
- New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds
- Quantum process tomography of a controlled-NOT gate
- Procedure for systematically tuning up crosstalk in the cross resonance gate
- AC-Stark Shift and Dephasing of a Superconducting Qubit Strongly Coupled to a Cavity Field
- Quantum Process Tomography: Resource Analysis of Different Strategies
- Qubit-photon interactions in a cavity: Measurement induced dephasing and number splitting
- Efficient measurement of quantum gate error by interleaved randomized benchmarking
- A geometric theory of non-local two-qubit operations
- Demonstration of qubit operations below a rigorous fault tolerance threshold with gate set tomography
- Quantum Computing for Finance: State of the Art and Future Prospects
- Mitigating measurement errors in multi-qubit experiments
- Fluctuations of Energy-Relaxation Times in Superconducting Qubits
- Implementing a Universal Gate Set on a Logical Qubit Encoded in an Oscillator
- Quantum trajectory approach to circuit QED: Quantum jumps and the Zeno effect
- Self-Consistent Quantum Process Tomography
- A universal quantum circuit for two-qubit transformations with three CNOT gates
- Maximum Likelihood, Minimum Effort
- Analytic control methods for high fidelity unitary operations in a weakly nonlinear oscillator
- Measuring and Suppressing Quantum State Leakage in a Superconducting Qubit
- Quantum Process Tomography of a Universal Entangling Gate Implemented with Josephson Phase Qubits
- Characterizing large-scale quantum computers via cycle benchmarking
- Optimal quantum control using randomized benchmarking
- Demonstrating a Driven Reset Protocol of a Superconducting Qubit
- Process verification of two-qubit quantum gates by randomized benchmarking
- Fast and Unconditional All-Microwave Reset of a Superconducting Qubit
- Initialization by measurement of a two-qubit superconducting circuit
- Topological and subsystem codes on low-degree graphs with flag qubits
- Gradient optimization of analytic controls: the route to high accuracy quantum optimal control
- Leakage reduction in fast superconducting qubit gates via optimal control
- Qiskit Pulse: Programming Quantum Computers Through the Cloud with Pulses
- Characterizing errors on qubit operations via iterative randomized benchmarking
- Reducing unitary and spectator errors in cross resonance with optimized rotary echoes
- Adaptive hybrid optimal quantum control for imprecisely characterized systems
- A Threshold for Quantum Advantage in Derivative Pricing
- Pulse-efficient circuit transpilation for quantum applications on cross-resonance-based hardware
- Single qubit gates in frequency-crowded transmon systems
- Integrated tool-set for Control, Calibration and Characterization of quantum devices applied to superconducting qubits
- Restless Tuneup of High-Fidelity Qubit Gates
- Benchmarking the noise sensitivity of different parametric two-qubit gates in a single superconducting quantum computing platform
- Pulsed reset protocol for fixed-frequency superconducting qubits
- Optimized controlled Z gates for two superconducting qubits coupled through a resonator
- Quantum Algorithms for Mixed Binary Optimization applied to Transaction Settlement
- Optimized cross-resonance gate for coupled transmon systems
- Universal gates for protected superconducting qubits using optimal control
- Constructive Quantum Shannon Decomposition from Cartan Involutions
- Coherent Feedback Improved Qubit Initialization in the Dispersive Regime
- High-speed calibration and characterization of superconducting quantum processors without qubit reset
- Characterization and tomography of a hidden qubit
- Confidence polytopes for quantum process tomography
Cited by in corpus (12)
- Combining quantum processors with real-time classical communication
- State Preparation on Quantum Computers via Quantum Steering
- Pulse variational quantum eigensolver on cross-resonance based hardware
- Well-conditioned multi-product formulas for hardware-friendly Hamiltonian simulation
- Variational Quantum Time Evolution without the Quantum Geometric Tensor
- Compact quantum algorithms for time-dependent differential equations
- Fast Partitioning of Pauli Strings into Commuting Families for Optimal Expectation Value Measurements of Dense Operators
- Gate-set evaluation metrics for closed-loop optimal control on nitrogen-vacancy center ensembles in diamond
- Leakage in restless quantum gate calibration
- Parallel Driving for Fast Quantum Computing Under Speed Limits
- Qonductor: A Cloud Orchestrator for Quantum Computing
- Resource-Optimized Grouping Shadow for Efficient Energy Estimation