Hello quantum world! Google publishes landmark quantum supremacy claim

@article{Gibney2019HelloQW,
  title={Hello quantum world! Google publishes landmark quantum supremacy claim},
  author={Elizabeth Gibney},
  journal={Nature},
  year={2019},
  volume={574},
  pages={461-462}
}
  • E. Gibney
  • Published 23 October 2019
  • Physics
  • Nature
The company says that its quantum computer is the first to perform a calculation that would be practically impossible for a classical machine. The company says that its quantum computer is the first to perform a calculation that would be practically impossible for a classical machine. 

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References

Quantum supremacy using a programmable superconducting processor

TLDR
Quantum supremacy is demonstrated using a programmable superconducting processor known as Sycamore, taking approximately 200 seconds to sample one instance of a quantum circuit a million times, which would take a state-of-the-art supercomputer around ten thousand years to compute.