Quantum Technologies: Trends and Implications for Cyber Defense

Quantum Technologies: Trends and Implications for Cyber Defense examines emerging quantum technologies and their strategic implications for cybersecurity and cyber defense. Bringing together contributions from more than 40 international experts, the book provides a broad overview of developments in quantum computing and quantum communication, with particular emphasis on the opportunities, challenges, and security implications of these technologies. The first part focuses on quantum computing technologies, including superconducting qubits, trapped-ion systems, neutral atoms, semiconductor spin qubits, quantum error control and mitigation, quantum optimization, quantum annealing, and quantum machine learning. The second part explores quantum communication and its security implications, covering quantum threats, quantum random number generators, quantum key distribution, post-quantum cryptography, and organizational readiness for emerging quantum technologies. The final part investigates the global quantum technology ecosystem, including national quantum strategies, investment trends, open-source software analysis, financial news, bibliometric studies, and the quantum ecosystem of Switzerland. By combining technical insights with strategic analysis, the book serves researchers, cybersecurity professionals, policymakers, and industry leaders seeking to understand and prepare for the impact of quantum technologies on digital security infrastructures.