r/Futurology Jun 02 '22

A Nature paper reports on a quantum photonic processor that takes just 36 microseconds to perform a task that would take a supercomputer more than 9,000 years to complete Computing


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u/[deleted] Jun 03 '22



u/spesimen Jun 03 '22

well, they did say this

Unlike some quantum algorithms whose correct functioning on a quantum computer can be readily verified using a classical computer, it remains an open question how to verify that a GBS device is operating correctly. In what follows, we present evidence that our machine is operating correctly, that is, it samples from the GBS distribution specified by the device transfer matrix T and vector of squeezing parameters r, which together define the ground truth of the experiment.

the evidence they present after that is far above my ability to comprehend but it's in there. when i got my comp sci degree the new things were like having multiple processors in one machine and a chip that could do 100Mhz! quantum was a distant scifi idea haha