Does Google’s Quantum Chip Prove The Multiverse Exists?

[John Clark]

I would say the answer is no, it doesn't prove the multiverse exists but it does provide evidence in its favor. The leader of the team that made Willow, Google's revolutionary new Quantum Computing chip, Hartmut Neven, would go further than I would, he thinks the fact that his chip has solved a problem in five minutes that would take the largest conventional supercomputer 10^25 years to solve is a direct result of many Willow chips in many different worlds working on the same problem at the same time. Granted it's not a problem of any practical use but I agree with Neven that fact is not relevant in this context.

Neven said this:

“This mind-boggling number exceeds known timescales in physics and vastly exceeds the age of the universe. It lends credence to the notion that quantum computation occurs in many parallel universes, in line with the idea that we live in a multiverse, a prediction first made by David Deutsch.”

Other interpretations can give the same results but I can understand why somebody who has to get his hands dirty and actually make the hardware and software for a Quantum Computer would take the Many Worlds idea as a given due to the fact that you've got to keep a whole lot of complicated things straight in your head, and it's much easier to do that if you think in Many Worlds terms because it doesn't need to add all sorts of complicated bells and whistles that other quantum interpretations require. So I would say that regardless of whether it's true or not, in the next few years the Many Worlds interpretation is going to increase in popularity, especially among Quantum Computer engineers and software writers.

John K Clark    See what's on my new list at  Extropolis

baw

[Cosmin Visan]

No. But it proves Santa Claus.

[Brent Meeker]

As Scott Aaronson  points out, all those computations in "other worlds" have to interfere in this world to produce the answer.

Brent

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