Quantum Boson Sampling 10 Trillion Times Faster Than Regular Supercomputers

Chinese researchers performed Gaussian boson sampling by sending 50 indistinguishable single-mode squeezed states into a 100-mode ultralow-loss interferometer with full connectivity and random matrix—the whole optical setup is phase-locked—and sampling the output using 100 high-efficiency single-photon detectors. The obtained samples are validated against plausible hypotheses exploiting thermal states, distinguishable photons, and uniform distribution. The photonic quantum computer generates up to 76 output photon clicks, which yields an output state-space dimension of 10^30 and a sampling rate that is 100 trillion faster than using the state-of-the-art simulation strategy and supercomputers. In 2019, Google claimed their 53-qubit processor generated a million noisy

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