Scalable Quantum Computing: A System-Level Framework
Quantum computing is often discussed as a race: more qubits, higher fidelities, larger processors. Yet after more than a decade working across quantum research, system architecture , and industry analysis, one pattern is clear — most scalability failures have little to do with qubits themselves . They emerge instead from control complexity, calibration overhead, software fragility, and operational entropy that compound long before fault tolerance arrives. This article is written for systems architects and engineers who already understand quantum computing fundamentals and want a practical framework for evaluating and designing scalable, production-grade quantum systems. The core argument is simple but frequently overlooked: Scalable quantum computing is not a hardware milestone — it is a system property. What “Scalable” Really Means in Quantum Computing True scalability is not the ability to add qubits. It is the ability to increase useful, reliable computational capacity wi...