An Integrated Photonic CV Toolbox
Xanadu is a full-stack quantum computing company located in Toronto, Canada. Focussing on implementations of continuous variable integrated photonics, Xanadu is dedicated to developing and providing access to practical quantum devices integrated with its quantum optics simulator Strawberry Fields and machine learning platform PennyLane. In the past decade weakly driven parametric fluorescence, typically using spontaneous four-wave mixing or parametric downconversion, has emerged as the workhorse by which nonclassical light is generated on chip-based nanophotonic platforms. Much effort in this field has been directed toward optimizing the single-photon states produced by these processes, but relatively little progress has been made towards development of the nanophotonic sources of their continuous variable quantum information processing (CV-QIP) cousins: squeezed vacuum states. Typical applications in CV-QIP place stringent requirements on the properties of the source of squeezed states. Each of these properties must be carefully engineered, and chip-based nanophotonics is an ideal environment in which to do so. I will begin by giving an introduction to Xanadu, including its motivations and goals. The bulk of my talk will report on the hardware team’s progress working toward true nanophotonic squeezed vacuum sources compatible with photon counting.