Beyond NISQ: The Megaquop Machine

Abstract

Today's Noisy Intermediate-Scale Quantum (NISQ) computers have scientific value, but quantum machines with broad practical value must be protected against noise using quantum error correction and fault-tolerant protocols. Recent studies of quantum error correction on actual hardware are opening a new era of quantum information processing. Error-corrected computers capable of performing one million quantum operations or more may be realized soon, raising a compelling question for the quantum community: What are the potential uses of these megaquop machines?

(v2) Published version, references updated. (v1) 7 pages. Based on a keynote address at the Q2B 2024 Conference in Silicon Valley on 11 December 2024

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• Quantum error detection in qubit-resonator star architecture
• Resource-Efficient Cross-Platform Verification with Modular Superconducting Devices
• Noise tolerance via reinforcement: Learning a reinforced quantum dynamics
• Artificial intelligence for representing and characterizing quantum systems
• Performance-centric roadmap for building a superconducting quantum computer
• Deterministic quantum trajectory via imaginary time evolution
• Refined Criteria for QRAM Error Suppression via Efficient Large-Scale QRAM Simulator
• Decoded Quantum Interferometry Under Noise
• Transversal architecture for megaquop-scale quantum simulation with neutral atoms
• Direct entanglement ansatz learning (DEAL) with ZNE on error-prone superconducting qubits
• An Accessible Planar Charged Particle Trap for Experiential Learning in Quantum Technologies
• Optimized Clifford Noise Reduction: Theory, Simulations and Experiments
• Formal Verification of Quantum Ancilla Safety
• Information Processing in Quantum Thermodynamic Systems: an Autonomous Hamiltonian Approach
• Universal quantum computation via scalable measurement-free error correction
• General many-body entanglement swapping protocol: opportunities for distributed quantum computing
• POPQC: Parallel Optimization for Quantum Circuits (Extended Version)