Gaussian boson sampling with 1,024 squeezed states in 8,176 modes

Gaussian boson sampling with 1,024 squeezed states in 8,176 modes

The development of large-scale, high-fidelity quantum processors is a fundamental scientific challenge, essential for exploring the boundaries of classical computation and advancing towards fault-tolerant systems. Gaussian boson sampling not only serves as a prominent model for demonstrating quantum computational advantage1–3 but can also generate bosonic error-correcting codes for fault-tolerant quantum computing4–6. However, its scalability ha…

China's 'Jiuzhang 4' Quantum Computer Achieves 10^54 Speedup Over Supercomputers

Researchers from the University of Science and Technology of China (USTC), led by Pan Jianwei, Lu Chaoyang, Zhang Qiang, and Liu Naile, have successfully built "Jiuzhang 4" — a programmable quantum computing prototype with 1,024 squeezed state inputs and 8,176 modes, capable of manipulating and detecting quantum states of up to 3,050 photons. The system solves Gaussian boson sampling tasks at a speed 10^54 times faster than the world's current f…

Gaussian Boson Sampling: 1,024 Squeezed States, 8,176 Modes

In a seminal leap forward for quantum information science, researchers have announced the realization of a programmable photonic quantum processor named Jiuzhang 4.0, a device that integrates an unprecedented 1,024 high-efficiency squeezed light sources into an 8,176-mode hybrid spatial-temporal network. This advancement marks a transformative milestone in Gaussian boson sampling technology, dramatically enhancing scale and computational capacit…