Quantum computational advantage with a programmable photonic processor | Nature

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Gaussian boson sampling is performed on 216 squeezed modes entangled with three-dimensional connectivity5, using Borealis, registering events with up to 219 photons and a mean photon number of 125.

Main Only a handful of experiments have used quantum devices to carry out computational tasks that are outside the reach of present-day classical computers1,2,6,7. In all of these, the computational task involved sampling from probability distributions that are widely believed to be exponentially hard to simulate using classical computation. One such demonstration relied on a 53-qubit programmable superconducting processor6, whereas another used a non-programmable photonic platform implementing Gaussian boson sampling (GBS) with 50 squeezed states fed into a static random 100-mode…

Quantum computational advantage with a programmable photonic processor | Nature

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