OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA

CBRN defense: the revolution of detection in the era of quantum technologies

Larissa Oliveira de Sá, Clara Toledo Siqueira de Souza, Paulo José Iack Silva, Fernando Manuel Araújo-Moreira

Published Jul 23, 2025• 0 citations

Abstract

This review explores a very relevant and actual subject: the strategic role of quantum sensors in Chemical, Biological, Radiological, and Nuclear (CBRN) Defense, emphasizing their potential to transform military capabilities and strengthen national security. Based on the principles of the Second Quantum Revolution such as superposition, entanglement, and coherence the study examines technologies for developing highly sensitive sensors. It differentiates sensors and detectors and details chemical, biological, and nuclear detection systems. Topics include electrochemical, optical, gas, and biosensors, as well as quantum dots, graphene quantum dots, and surface plasmon resonance. Military applications of quantum interferometers, gravimeters, and magnetometers are discussed, particularly in GPS-denied or underground environments. Despite their disruptive potential, challenges such as miniaturization, integration, and cost still limit operational deployment. The study concludes that quantum sensors are a disruptive and promising tool for real-time CBRN threat monitoring and response, requiring continued global research and investment.

DOI: 10.55905/oelv23n7-141

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