Silicon spin qubits: A scalable solution for quantum computing

Quantum computers promise to revolutionize information processing, offering game-changing opportunities in fields such as cryptography, machine learning, drug discovery, etc. However, building large-scale quantum computers presents significant challenges, requiring both fundamental research and technological breakthroughs. Among the various platforms proposed for the realization of the core of the quantum hardware, qubits realized in semiconductor nanostructures stand out. One of their key advantages lies in their compatibility with standard semiconductor manufacturing, enabling, among other capabilities, their co-integration with control and readout electronics, thus improving scalability and reducing interconnect complexity. In this review, we discuss recent advances in silicon-based spin qubits and present an overview of the progress and challenges in developing large-scale quantum computing systems based on this architecture.