Trends and prospects for semiconductor qubit research

Abstract

The development of fault-tolerant quantum computers that can solve diverse, complex, and large-scale problems is highly anticipated. Achieving this requires both high-fidelity and highly-integrated qubits. Research and development is progressing on various physical systems, and semiconductor qubits are one of the leading candidates. This report provides an overview of the fundamental knowledge of semiconductor qubits. Then, it introduces the global research and development trends related to high fidelity, various efforts toward integration, and research and development of peripheral technologies.