Quantum foundations for quantum technologies in the International Year of Quantum (2025)

• URL: http://arxiv.org/abs/2603.04630v1
• Date: Wed, 04 Mar 2026 21:43:52 GMT
• Title: Quantum foundations for quantum technologies in the International Year of Quantum (2025)
• Authors: Angelo Bassi,
• Abstract summary: From the very beginning, Quantum Mechanics has been accompanied by crucial foundational questions.<n>The trajectory proved unpredictable: questions once dismissed as metaphysical gave rise to experimental platforms.<n>Advances in technology also feed back into foundations, enabling tests of principles that were previously out of reach.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: From the very beginning, Quantum Mechanics has been accompanied by crucial foundational questions: the possibility of visualizing physical processes, the limits of measurement epitomized by the Heisenberg uncertainty principle, the existence of a deeper underlying reality with additional degrees of freedom, the role of measurements, and the status of locality. Long regarded as philosophical speculations, these issues were progressively reformulated into precise mathematical statements and ultimately subjected to experimental verification. The trajectory proved unpredictable: questions once dismissed as metaphysical gave rise to experimental platforms, which in turn matured into devices and technologies powering quantum computation, communication, and sensing. Yet this development is not unidirectional: advances in technology also feed back into foundations, enabling tests of principles that were previously out of reach, for example, whether quantum superposition persists at larger and larger scales and whether reality, gravity included, is fundamentally quantum. In this way, the dialogue between foundational inquiry and technological progress continues to shape both our theoretical understanding and the practical realization of quantum phenomena.

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