From Round-Trip State Echo to Error Recovery: Snapshot-Resolved Quantum-Hardware Diagnostics

arXiv:2608.26010 · quant-ph · Submitted 2026-08-26 · Read on arXiv

quant-ph

Submitted: 2026-08-26

Updated: 2026-09-19

Terminology

• Benchmark — 20× in this paper · explained in 2 episodes
• Entanglement — 18× in this paper · explained in 3 episodes
• Benchmarking — 17× in this paper · explained in 3 episodes
• Calibration — 16× in this paper · explained in 7 episodes
• Fidelity — 11× in this paper · explained in 2 episodes
• Trace — 5× in this paper · explained in 2 episodes
• Abstraction — 3× in this paper · explained in 1 episode
• All-to-All Connectivity — 3× in this paper · explained in 1 episode
• Alignment — 2× in this paper · explained in 1 episode
• Decode — 2× in this paper · explained in 2 episodes
• Aggregation — 1× in this paper · explained in 1 episode
• Consistency — 1× in this paper · explained in 3 episodes
• Loss Function — 1× in this paper · explained in 2 episodes
• Verification — 1× in this paper · explained in 2 episodes

Sources

• Benchmarking quantum computers via protocols
• Benchmarking Quantum Computers via Protocols, Comparing IBM's Heron vs IBM's Eagle
• Benchmarking Quantum Computers via Protocols, Comparing Superconducting and Ion-Trap Quantum Technology
• Benchmarking Quantum Processor Performance at Scale
• How Far Can You Do Nothing On a Quantum Computer?

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• Theory of quantum-enhanced interferometry with general Markovian light sources
• A convergent hierarchy of spectral gap certificates for qubit Hamiltonians
• Universal Bound and Phase Transition in Many-Body Fermionic Non-Gaussianity