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Google quantum computing breakthrough by year end

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The company is currently testing a quantum processor more than twice as powerful as its previously announced chip, and claims it will be ready by the end of 2017.


Google's quantum AI lab is testing a 20-qubit processor that has a two-qubit fidelity of 99.5 per cent, a measure of how many errors the chip makes.

And the company claims it will have a working 49-qubit chip by the end of the year.

The technology firm previously only publicly confirmed it has achieved a nine-qubit machine, built in 2015.



The above photograph is of the device containing nine quantum bits



To beat conventional machines, in what scientists call 'quantum supremacy', the new chip will need to have a two-qubit fidelity of at least 99.7 per cent.

This margin of error has to be corrected before functioning quantum computers can be built.

Alan Ho, an engineer in Google's quantum AI lab, revealed the company's progress at a quantum computing conference in Munich, according to reports in New Scientist.


Pictured - A 2014 prototype of a Google qubit known as a transmon
 
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