25 February 2024, Volume 2, Issue 1, pp. 1-56

A foundry-fabricated silicon photonic integrated circuit (PIC) generates quantum states of light entangled in high dimension. The PIC is fully electronically and optically packaged, an important step for deployable quantum photonics. See Manfreda-Schulz et al., pp. 35–40. See print version of the cover.