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Lasers are used in a new type of quantum computing called boson sampling

ArcticDude

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A quantum computer that measures light has achieved quantum supremacy

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A new type of quantum computing called boson sampling is capable of calculations that no classical computer could accomplish in any reasonable amount of time. This is the second time this feat, known as quantum supremacy, has been claimed for a quantum algorithm after Google said in 2019 that its Sycamore device had achieved this.

Boson sampling relies on a strange quantum property of photons – particles of light – that is displayed when they travel through a beam splitter, which divides a single beam of light into two beams propagating in different directions. If two identical photons hit the beam splitter at exactly the same time, they don’t split from one another. Instead, they stick together and both travel in the same direction.

More at New Scientist >>


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Unown (WILD)

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So the two photons stick together? Which end do they both come out of?

"the Japanese Fugaku supercomputer, the world’s most powerful classical computer, would take 600 million years to accomplish what Jiuzhang can do in just 200 seconds. The fourth most powerful supercomputer, the Sunway TaihuLight, would take 2.5 billion years."

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