https://futurism.com/team-tightens-bounds-on-quantum-information-speed-limit
Physicists have narrowed the theoretical quantum speed limit, and it's slower than expected.
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https://www.arxiv.org/abs/2510.00057
Abstract page for arXiv paper 2510.00057: Quantum speed limit as a sensitive probe of Planck-scale effects
quantum speed limitsensitiveprobe