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Technology IBM questions Google quantum computing claims

01:00  23 october  2019
01:00  23 october  2019 Source:   techradar.com

Google reportedly attains 'quantum supremacy'

  Google reportedly attains 'quantum supremacy' Its quantum computer can solve tasks that are otherwise unsolvable, a report says.A new quantum computer from Google can reportedly do the impossible.

Quantum computing could change everything, and IBM is racing with Microsoft, Intel, and Google To read the full article, simply click here to claim your deal and get access to all exclusive Business IBM has an early lead in quantum computing , experts say, with Google , Intel, Microsoft, and a host

Researchers at IBM and the University of California are questioning whether a closely watched experimental computer used by Google actually relies on quantum mechanics as its manufacturer, D-Wave, claims . At the heart of the battle is a question about the validity of quantum computing

In a draft paper which was accidentally leaked recently, Google claimed that it had reached “quantum supremacy” but now IBM has publicly questioned those claims in a blog post of its own.

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Quantum supremacy is a concept which was originally put forth by Caltech professor John Preskill and in order to reach it, a company would need to demonstrate that a quantum computer could do something that today's classical computers cannot.

In its blog post, IBM's quantum team said that Google's claim of quantum supremacy was flawed because its Sycamore quantum processor had not yet exceeded the capabilities of classical computers, saying:

Google may have just ushered in an era of ‘quantum supremacy’

  Google may have just ushered in an era of ‘quantum supremacy’ ‘The first computation that can only be performed on a quantum processor’Google’s quantum computer was reportedly able to solve a calculation — proving the randomness of numbers produced by a random number generator — in 3 minutes and 20 seconds that would take the world’s fastest traditional supercomputer, Summit, around 10,000 years. This effectively means that the calculation cannot be performed by a traditional computer, making Google the first to demonstrate quantum supremacy.

Quantum for researchers. IBM Q is your most passionate collaborator to advance foundational quantum computing research that will make real-world impact. Work with the best experts across experimentation, theory, and computer science and explore new possibilities in the field of quantum

Technical quarrels between quantum computing experts rarely escape the field’s rarified community. Late Monday, though, IBM ’s quantum team picked a It will take time for the quantum research community to dig through IBM ’s claim and any responses from Google . For now, Jonathan Dowling

“Because the original meaning of the term “quantum supremacy,” as proposed by John Preskill in 2012, was to describe the point where quantum computers can do things that classical computers can’t, this threshold has not been met.”

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Quantum computer vs supercomputer

The leaked draft of the Google paper that recently appeared online explained that the company had posed a statistical math problem to its own prototype quantum processor called Sycamore and the world's fastest supercomputer called Summit at the Oak Ridge National Lab.

Using the experiment's results, the paper estimated that one of today's top supercomputers would need approximately 10,000 years to do what Sycamore did in 200 seconds.

Google may have taken first step towards quantum computing 'supremacy'

  Google may have taken first step towards quantum computing 'supremacy' Google may have made a breakthrough on the path toward creating a viable quantum computer. In a research paper briefly published to NASA's website and only seen by the Financial Times, the company reportedly claims to have achieved a feat known as "quantum supremacy." That is, the search giant says it has successfully created a computer that's able to complete a calculation that is virtually impossible for traditional computers to perform. Google says Sycamore, its 53-qubit quantum computer, was able to calculate a proof in three minutes and 20 seconds that shows the numbers created by a random number generator are in fact random.

Google AI Quantum is advancing quantum computing by developing quantum processors and novel quantum algorithms to help researchers and developers We think quantum computing will help us develop the innovations of tomorrow, including AI. That’s why we’re committed to building dedicated

Microsoft CEO Satya Nadella rates quantum computing as one of three key technologies that will shape his company’s future, along with artificial intelligence and mixed reality. IBM has its Q initiative, and Boeing’s newly formed Disruptive Computing & Networks unit is targeting quantum as well.

However, IBM was responsible for developing Summit and the company says that the supercomputer could have done the work in two and a half days and possibly even faster if it was given more time to perfect the implementation. While this would still not make Summit faster than Sycamore, in his original definition of quantum supremacy, Preskill did say that a quantum computer would have to do something impossible for a classical computer to do, to reach the milestone.

Google is expected to publish a peer-reviewed version of its leaked quantum supremacy paper which will be based on its latest Sycamore chip. IBM's recently released paper has yet to be peer reviewed but the company says that it will be soon.

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Via Wired

Explainer: Google hails 'quantum supremacy', but don't chuck out your PC just yet .
Explainer: Google hails 'quantum supremacy', but don't chuck out your PC just yetGiven the task of finding a pattern in a seemingly random series of numbers, Google's quantum computer produced an answer in 3 minutes and 20 seconds. It estimates that the Summit supercomputer https://www.ibm.com/thought-leadership/summit-supercomputer at the Oak Ridge National Laboratory in Tennessee would take 10,000 years to complete the task.

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