Quantum computing applications for Internet of Things
The Internet of Things (IoT) ecosystem faces significant bottlenecks in processing power, energy consumption, and security as billions of heterogeneous devices join networks globally. Quantum computing introduces powerful computational paradigms—such as quantum superposition, entanglement, and quantum parallel processing—that promise to revolutionize IoT infrastructures. This paper presents a comprehensive study on quantum computing applications for IoT, detailing post-quantum cryptography, Quantum Key Distribution (QKD), quantum random number generation (QRNG), network routing optimization using quantum approximate optimization algorithms (QAOA), and quantum-assisted sensing. We analyze current hardware limitations, algorithmic readiness, and integration pathways to build quantum-resilient and ultra-efficient next-generation IoT systems.