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    PsiQuantum’s Previously Secret Q1 Photonic Quantum Computer With GlobalFoundries

    A PsiQuantum 300 mm wafter built by GlobalFoundries GlobalFoundries It has been over a year since I wrote about PsiQuantum. Its bold prediction at that time was that it would build a million-qubit fault-tolerant photonic quantum computer within five years.    PsiQuantum was founded in 2016 by British professor Jeremy O’Brien and three other academics, Terry Rudolph, Mark Thompson, and Pete Shadbolt. Like the origin of many quantum computer startups, the concept of PsiQuantum’s core technology was born in a university research lab, in this case at the University of Bristol. In 2009, O’Brien published a research paper that described how  

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