{"id":5129,"date":"2019-03-13T07:16:23","date_gmt":"2019-03-13T07:16:23","guid":{"rendered":"https:\/\/gtechbooster.com\/?p=5129"},"modified":"2023-04-01T01:36:53","modified_gmt":"2023-04-01T01:36:53","slug":"googles-bristlecone-making-progress-in-quantum-computing","status":"publish","type":"post","link":"https:\/\/gtechbooster.com\/googles-bristlecone-making-progress-in-quantum-computing\/","title":{"rendered":"Google's Bristlecone making progress in Quantum Computing"},"content":{"rendered":"\n

It is a year since Google announced Bristlecone, its 72-qubit quantum\n processor. Since then the Quantum AI team hasn’t made any further\nannouncements. However, there is now a series of videos that show that\nprogress is being made<\/p>\n\n\n

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We came across these videos via a new series on the Google blog. \nAccording to Peter Schottenfels, who describes himself as a tech newbie:<\/p>\n\n\n

Ask a Techspert<\/strong> is a new series on the Keyword asking Googler experts to explain complicated technology for the rest of us. This isn\u2019t meant to be comprehensive, but just enough to make you sound smart at a dinner party.<\/em><\/p>\n\n\n

To jump in at the deep end the first Techspert to be interviewed\nis Marissa Giustina, a research scientist and quantum electronics\nengineer in the AI Quantum Lab who was asked to explain how quantum\ncomputing actually works.<\/p>\n\n\n

One fact I found particularly fascinating was that quantum processors operate in a special refrigerator called a cryostat, which cools the chips to below 50 millikelvin\u2014significantly colder than outer space!  The cryostat, which is bigger than a person is just the shell, providing the proper environment for the processor to function. The quantum processor itself is a silicon chip installed in the cryostat, and is closer to the size of a coin. The qubits are small, roughly 0.1 mm across, but not that small\u2014you can see them with the naked eye (though it\u2019s easier with a magnifying glass or microscope). <\/p>\n\n\n

The AI Quantum team is working on a series of videos, called QuantumCasts, covering various aspects of quantum computers, how they work and how they can be used. In the first of the set, <\/p>

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What is a quantum computer?<\/strong><\/h2>\n\n\n

Marissa Giustina provides an explanation of what a quantum computer, which in addition to the theory has the additional interest in being able to see some details of the Bristlecone processors and the hardware they are being built into.<\/p>\n\n\n

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