Nvidia Completes Record 104-Qubit Fault-Tolerant Quantum Simulation on JUPITER

Nvidia said it completed the largest fault-tolerant quantum computing simulation to date on JUPITER, Europe's first exascale supercomputer at Germany's Jülich Supercomputing Centre, using 8,192 GH200 GPU superchips to fully model a 104-qubit fault-tolerant quantum processor. The simulation, announced by the company, is the first to incorporate realistic hardware noise, including coherent phase errors and energy-level leakage in superconducting qubits. It also validated a "magic state cultivation" technique that cuts physical qubit overhead for magic state preparation by about 90%, versus the 90%-95% of physical qubit budgets consumed by conventional distillation. The work used Nvidia's cuQuantum acceleration software and the CUDA-Q platform's fault-tolerant logical computing layer, scaled from four GPUs on an NVAQC GB200 NVL72 system before moving to JUPITER, compressing weeks of simulation into days. "The results at Jülich show how quantum processors and GPU supercomputers can work together," CEO Jensen Huang said.