Quantum computing is a reality!
Posted: Sat Oct 26, 2019 10:59 pm
As much as I hate the fact that Google (in collaboration with NASA) can claim this milestone, I love that the very first quantum computer was a success.
Technically it is about this: prove quantum supremacy.
And the scientists and engineers realized, what the scientific world is after for decades now. They constructed quantum chips with a total of 4 qbits (of which one wasn't working), and with those 3 (4) qbits a task of generating 1 million random numbers with a very complex algorithm (simply spoken) was executed. It took around 200 seconds.
That alone doesn't sound ground-breaking. So where's the supremacy? Well, the fastest supercomputer today would need something in the lines of 10,000 years to complete the same task!
One detail that allowed for this speed is the fact that they managed to superimpose by the factor of 2^53, essentially meaning extreme parallelism in computing the task. A modern home PC has 2^5 cores, and we are close to the technical limits of this technique.
https://youtu.be/-ZNEzzDcllU
Technically it is about this: prove quantum supremacy.
And the scientists and engineers realized, what the scientific world is after for decades now. They constructed quantum chips with a total of 4 qbits (of which one wasn't working), and with those 3 (4) qbits a task of generating 1 million random numbers with a very complex algorithm (simply spoken) was executed. It took around 200 seconds.
That alone doesn't sound ground-breaking. So where's the supremacy? Well, the fastest supercomputer today would need something in the lines of 10,000 years to complete the same task!
One detail that allowed for this speed is the fact that they managed to superimpose by the factor of 2^53, essentially meaning extreme parallelism in computing the task. A modern home PC has 2^5 cores, and we are close to the technical limits of this technique.
https://youtu.be/-ZNEzzDcllU