Quantum computational advantage using photons
The team demonstrates Gaussian boson sampling with a photonic quantum computer named Jiuzhang, detecting up to 76 output photons from a 100-mode interferometer. The resulting output distribution spans an enormous Hilbert space, and they estimate the sampling task would take classical supercomputers astronomically longer, providing a photonics-based demonstration of quantum computational advantage. This complemented the earlier superconducting-qubit supremacy result with a distinct physical platform.