Demonstration of quantum volume 64 on a superconducting quantum computing system

Abstract

We improve the quality of quantum circuits on superconducting quantum computing systems, as measured by the quantum volume, with a combination of dynamical decoupling, compiler optimizations, shorter two-qubit gates, and excited state promoted readout. This result shows that the path to larger quantum volume systems requires the simultaneous increase of coherence, control gate fidelities, measurement fidelities, and smarter software which takes into account hardware details, thereby demonstrating the need to continue to co-design the software and hardware stack for the foreseeable future.

Fixed typo in author list. Added references [38], [49] and [52]

References in corpus (16)

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• Randomized Benchmarking of Quantum Gates
• Simple pulses for elimination of leakage in weakly nonlinear qubits
• Robust randomized benchmarking of quantum processes
• Fault-Tolerant Quantum Dynamical Decoupling
• Characterization of addressability by simultaneous randomized benchmarking
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• Robust dynamical decoupling for quantum computing and quantum memory
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• Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit
• Microwave-induced coupling of superconducting qubits
• Reducing unitary and spectator errors in cross resonance with optimized rotary echoes
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• Enhancing qubit readout through dissipative sub-Poissonian dynamics

Cited by in corpus (23)

• High-fidelity parallel entangling gates on a neutral atom quantum computer
• Exponential suppression of bit or phase flip errors with repetitive error correction
• OpenQASM 3: A broader and deeper quantum assembly language
• Preparing random states and benchmarking with many-body quantum chaos
• High-Fidelity Qutrit Entangling Gates for Superconducting Circuits
• High-coherence superconducting qubits made using industry-standard, advanced semiconductor manufacturing
• Quantum walk approach to simulating parton showers
• Measurement Error Mitigation for Variational Quantum Algorithms
• Natural Evolutionary Strategies for Variational Quantum Computation
• Towards a Quantum Computing Algorithm for Helicity Amplitudes and Parton Showers
• Epitaxial Superconductor-Semiconductor Two-Dimensional Systems for Superconducting Quantum Circuits
• Scalable Benchmarks for Gate-Based Quantum Computers
• QUILT: Effective Multi-Class Classification on Quantum Computers Using an Ensemble of Diverse Quantum Classifiers
• Numerical Implementation of Just-In-Time Decoding in Novel Lattice Slices Through the Three-Dimensional Surface Code
• Experimental accreditation of outputs of noisy quantum computers
• High-fidelity superconducting quantum processors via laser-annealing of transmon qubits
• A QUBO Formulation for Qubit Allocation
• Quantum Computing for Location Determination
• Quantum Accelerator Stack: A Research Roadmap
• Comparative Study of Sampling-Based Simulation Costs of Noisy Quantum Circuits
• Trainable Discrete Feature Embeddings for Variational Quantum Classifier
• Finding high-order Hadamard matrices by using quantum computers
• Quantum Oracle Separations from Complex but Easily Specified States