Perdigão, Rui A.P. (2026): Advances and Perspectives in Quantum Technologies: from Theoretical Foundations to Operational Frontiers. https://doi.org/10.46337/qites.m260728

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Abstract

Quantum technologies are moving from foundational science toward engineered systems in sensing and metrology, computing and simulation, communication and networking, and security. The transition is uneven in technological maturity: atomic clocks and several quantum sensors are operational; quantum key distribution has reached field deployment but remains constrained by integration, assurance and network architecture; post-quantum cryptography is entering standards-based migration; and general-purpose fault-tolerant quantum computing remains an engineering objective despite major progress in error correction. This treatise develops a mathematically grounded and application-oriented account of what quantum technologies are, what physical resources they exploit, what advantages have been proved or demonstrated, and where claims remain speculative. It distinguishes among scientific feasibility, engineering readiness, operational utility, economic value and societal legitimacy. Across fundamental physics, Earth and space sciences, environmental monitoring, health and life sciences, cybersecurity, critical infrastructure, hazards, defense, finance, decision support and AI-enabled systems, this work identifies bottlenecks and proposes a systems roadmap for robust, scalable, efficient, verifiable and responsible quantum-enabled capabilities.

Chapters

  1. Introduction (pp. 01-17)
  2. Mathematical-Physical Foundations, Capability Boundaries and Myths (pp. 18-32)
  3. The Quantum Technology Stack: from Physical Resources to Operational Systems (pp. 33-48)
  4. Quantum sensing and metrology: from quantum estimation to fielded instruments (pp. 49-64)
  5. Quantum computing and simulation: from controlled interference to useful computation (pp. 65-79)
  6. Quantum communication and networking: from secure links to distributed quantum systems (pp. 80-96)
  7. Security in the Quantum Era: Cryptographic Transition, Assurance and Resilience (pp. 97-114)
  8. Articulation with AI, HPC, Digital Twins and Systems Intelligence (pp. 115-133)
  9. Quantum Technologies for Earth and Space Sciences (pp. 134-148)
  10. Quantum Technologies for Environmental Science and Engineering (pp. 149-163)
  11. Quantum Technologies for Health, Biomedical, Pharmaceutical and Biochemical Applications (pp. 164-178)
  12. Quantum Technologies for Cyber, Cyber-Physical and Critical-Infrastructure Security (pp. 179-194)
  13. Quantum Technologies for Hazards and Multi-Hazards (pp. 195-210)
  14. Quantum Technologies for Decision Support Systems (pp. 211-224)
  15. Quantum Technologies for Defence and National Security (pp. 225-238)
  16. Quantum Technologies for Finance (pp. 239-251)
  17. Quantum Technologies for Energy, Industry, Manufacturing and Logistics (pp. 252-263)
  18. Industrial Landscape and Case-Study Design (pp. 264-274)
  19. Benchmarking, Verification, Validation and Standards (pp. 275-288)
  20. Research and Operational Gaps (pp. 289-309)
  21. Ways Forward: a Systems Roadmap (pp. 310-337)
  22. Governance, Economics, Sustainability and Responsible Innovation (pp. 338-358)
  23. Conclusions (pp. 359-377)
  24. Bibliography (pp. 378-421)

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This is the official DOI landing page of:

Title: Advances and Perspectives in Quantum Technologies: from Theoretical Foundations to Operational Frontiers
Author: Rui A. P. Perdigão
Date: July 28th, 2026
DOI: https://doi.org/10.46337/qites.m260728
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