Quantum computing and digital hardware: Revolutionizing computational power

Somarouthu, Sruthi (2025) Quantum computing and digital hardware: Revolutionizing computational power. World Journal of Advanced Research and Reviews, 26 (2). pp. 378-386. ISSN 2581-9615

Quantum computing stands poised to revolutionize digital hardware by offering computational capabilities that fundamentally transcend classical computing limitations. The global quantum computing market demonstrates substantial growth fueled by investments from major technology corporations as they race toward achieving practical quantum advantages. Despite formidable technical challenges—including the need for extremely low operating temperatures and error correction—significant advancements have been made in reducing error rates and increasing qubit counts. Novel architectures like Amazon's "Ocelot" cat qubits, Microsoft's topological quantum computing and Nvidia's accelerated quantum supercomputing that integrates quantum hardware with AI supercomputers address persistent challenges in error rates and qubit coherence. These developments open new frontiers in previously intractable problems across multiple domains, from cryptography to materials science and artificial intelligence. As the field progresses from the Noisy Intermediate-Scale Quantum era toward fault-tolerant quantum computing, it faces four critical challenges: scalability, error correction, quantum-classical integration, and algorithm development. Addressing these challenges will enable quantum computing to fulfill its transformative potential across industries, fundamentally reshaping computational technology.