Fault-Tolerant Quantum Computing with Silicon Photonics

Quantum computers promise a new paradigm of computation where information is processed in a way that has no classical analogue. However, the known problems for which quantum computers offer a computational advantage require long gate sequences and large number of qubits, which means that effective methods of noise mitigation and error correction must be at the core of the architectural design of any useful quantum computer. Photons make great qubits, they are cheap to produce, resilient to noise and the only known option for quantum networks. Most crucially, they can be efficiently manipulated with silicon photonics, an intrinsically scalable and manufacturable platform in which all the fundamental quantum gates can be implemented. In this talk, I will describe an architecture for universal fault-tolerant quantum computing supported by a silicon photonics platform. In particular, I will describe how its unique networking capabilities enable modular architectures with high thresholds.