Topological quantum photonics in silicon

Silicon photonics is bound to play a key role in quantum information technologies given its compactness, low-power requirements, CMOS-compatibility, room-temperature operation, and the inherent high speed and low noise of photons. The remarkable robustness to disorder and imperfections manifested by photonic states in topological systems emerges as a fascinating research avenue to increase the scalability of silicon quantum photonic technologies. This paper highlights some of the pioneering experimental efforts to understand the potential of topological protection on quantum photonic states and to outline a path toward robust quantum circuits.