QPU137: Quantum hardware without the hype

Why it surfaced

QPU137 treats quantum hardware as an evidence problem: its catalog lists 35 processors with dated sources, while its reality assessments separate theory, demonstrations, practical capability, and marketing claims. The in-browser lab also shows how a five-qubit circuit expands on a sparse architecture, turning an abstract hardware constraint into something readers can measure.

A vendor-neutral quantum computing lab where readers can run browser-based circuits, compare compilation across hardware architectures, and inspect sourced hardware claims.