PsiQuantum

PsiQuantum is an American quantum computing company based in Palo Alto, California, and in this atlas it is the institution behind one of the best known efforts to build a utility-scale, fault-tolerant quantum computer from silicon photonics. Its source article says the company was co-founded in 2016 by Jeremy O'Brien, Terry Rudolph, Peter Shadbolt and Mark Thompson, quantum physicists who had been professors or researchers at the University of Bristol and Imperial College London. The approach rests on photonic qubits and on using semiconductor manufacturing, and the article describes a manufacturing partnership with GlobalFoundries announced in 2019, a 2022 move of production into GlobalFoundries' Fab 8 in New York, and government partnerships to build first systems in Australia and the United States. It is recorded here as the employer and venture of its co-founders.