PsiQuantum developed its system in partnership with semiconductor manufacturer GlobalFoundries. All the key components – photon sources and detectors, logic gates and error correction – are integrated on single silicon-based chip. PsiQuantum says GlobalFoundries has already made millions of the chips.

Amazon says its Ocelot chip will cut error correction overhead by 90% and bring practical quantum computing closer to fruition, but some experts are skeptical

Amazon debuted its new "Ocelot" chip, joining other tech giants like Google and Microsoft in the race to develop full-fledged quantum computers.