PredictionQuantum advantageMissed

Google aims to show quantum supremacy with a 49-qubit chip by the end of 2017

Due 2017

IEEE Spectrum reported in May 2017 that Google's quantum hardware team aimed to build a 7-by-7 array of 49 superconducting qubits by the end of that year and use it to show "quantum supremacy": a calculation beyond the reach of the best supercomputers.

Predicted by
Google Quantum AI
Type
Official company roadmap
Said on
May 2017
Original deadline
by the end of this year (2017)
Status
Missed

Outcome

Oct 23, 2019: Google reported its quantum supremacy experiment on October 23, 2019, nearly two years after the target, using a new 54-qubit processor called Sycamore.

Outcome sources

  • Google Research Blog Quantum Supremacy Using a Programmable Superconducting Processor
    Primary sourceOct 23, 2019
    “Today we published the results of this quantum supremacy experiment in the Nature article, “Quantum Supremacy Using a Programmable Superconducting Processor”. We developed a new 54-qubit processor, named “Sycamore”, that is comprised of fast, high-fidelity quantum logic gates, in order to perform the benchmark testing.”

See it on the timeline

Sources (2)

  • IEEE Spectrum Google Plans to Demonstrate the Supremacy of Quantum Computing
    Independent coverageMay 24, 2017
    “By the end of this year, the team aims to increase the number of superconducting qubits it builds on integrated circuits to create a 7-by-7 array. With this quantum IC, the Google researchers aim to perform operations at the edge of what's possible with even the best supercomputers, and so demonstrate “quantum supremacy.””
  • TOP500 Google and IBM Battle for Quantum Supremacy
    Independent coverage2017
    “At a recent meeting of the American Physical Society in March, he laid out a path to building a 49-qubit computer before the end of the year. Martinis believes 49 qubits should be enough to demonstrate quantum supremacy”

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