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The vast world of quantum advantage

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arxiv 2508.05720 v2 pith:UT6VXELE submitted 2025-08-07 quant-ph cs.CCcs.ITmath.IT

The vast world of quantum advantage

classification quant-ph cs.CCcs.ITmath.IT
keywords quantumadvantagesadvantagefuturemathematicalremainstechnologyvast
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The quest to identify quantum advantages lies at the heart of quantum technology. While quantum devices promise extraordinary capabilities, from exponential computational speedups to unprecedented measurement precision, distinguishing genuine advantages from mere illusions remains a formidable challenge. In this endeavor, quantum theorists are like prophets attempting to foretell the future, yet the boundary between visionary insight and unfounded fantasy is perilously thin. In this perspective, we examine our mathematical tools for navigating the vast world of quantum advantages across computation, learning, sensing, and communication. We explore five keystone properties: predictability, typicality, robustness, verifiability, and usefulness that define an ideal quantum advantage, and envision what new quantum advantages could arise in a future with ubiquitous quantum technology. We prove that some quantum advantages are inherently unpredictable using classical resources alone, suggesting a landscape far richer than what we can currently foresee. While mathematical rigor remains our indispensable guide, the ultimate power of quantum technologies may emerge from advantages we cannot yet conceive.

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Cited by 26 Pith papers

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