Shor's Algorithm Creeps Toward Practice

Description

The image is a clean arXiv logo on a white background, with gray lowercase letters spelling "arxiv" and the central "X" formed by crossing gray and dark red strokes. The post context points to the arXiv paper "Shor's algorithm is possible with as few as 10,000 reconfigurable atomic qubits," submitted March 30, 2026. The paper argues that advances in quantum error correction, logical instruction sets, and neutral-atom architectures could reduce cryptographically relevant Shor resource estimates from millions of physical qubits to far smaller systems under plausible assumptions. The technical relevance is the pressure this kind of result puts on long-term cryptographic planning, even though it is a resource-estimate paper rather than a practical claim that RSA is broken today.