In his paper “The Main Areas of Quantum Technologies”, Carlos J. Costa provides a structured overview of the four foundational domains shaping today’s quantum technology landscape: quantum computing, quantum communication, quantum sensing and metrology, and quantum simulation. Costa explains how each area leverages core quantum principles—such as superposition, entanglement, and coherence—to achieve capabilities that surpass classical technologies.
The paper outlines the key physical platforms, applications, and technological maturity of each domain. Quantum computing is presented as a rapidly advancing research field with early industrial adoption through NISQ devices. Quantum communication, particularly through Quantum Key Distribution (QKD), is highlighted as one of the most commercially mature quantum technologies. Quantum sensing and metrology emerge as the most established area, with devices like atomic clocks and magnetometers already widely deployed. Quantum simulation is described as a powerful research tool for studying complex quantum systems, with growing overlap with quantum computing.
Costa concludes that quantum technologies represent a transformative paradigm with significant scientific, economic, and strategic implications. By organizing the field into four clear domains, the paper offers a coherent framework for understanding current progress and future directions in quantum innovation.
Costa, C. J. (2025). The Main Areas of Quantum Technologies. OAE – Organizational Architect and Engineer Journal. https://doi.org/10.21428/b3658bca.b4831fb6
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