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My understanding has been that neither Google nor anyone else really has a quantum processor.

• vtomole 7y ago
  Microsoft doesn't have a quantum processor but Google has one.
  • mehrdadn 7y ago
    As the saying goes, I'll believe their processor is doing quantum computing when someone like Scott Aaronson says so.
    • vtomole 7y ago
      > I'll believe their processor is doing quantum computing What do you mean? Quantum processors have been doing quantum computing for a while now. That is, initializing qubits to a known state, performing quantum gates on them, then performing measurements on the qubits. The validity of these experiments have been confirmed by state tomography.
      • mehrdadn 7y ago
        I haven't kept up in the past ~3 years, but as of back then (and I have not heard to the contrary thus far) there were serious doubts on whether anyone has gotten quantum speedup or not. https://www.newscientist.com/article/dn28641-experts-doubt-googles-claim-about-its-quantum-computers-speed/ https://www.newscientist.com/article/dn28641-experts-doubt-g...
        • vtomole 7y ago
          Getting a quantum speedup and doing quantum computing are different things. Also, your link refers to a quantum annealer not a universal quantum processor.
• marcosdumay 7y ago
  That entire series on Google is really weird. They claim to have a 78qbits computer, that would be the one this group is working on. That should put them well on the quantum supremacy area, and make a great computer for chemistry and semiconductor research. Yet, the article is claiming the group is still trying to get quantum supremacy, and there is no sign of results from the computer. I imagine they have a computer that doesn't really work.