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.

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

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Cited by in corpus (24)

• Demonstration of the trapped-ion quantum-CCD computer architecture
• 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