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Nvidia Simulates Its Way Into Google’s Magic State Cultivation Party
On October 15, Google Quantum AI unveiled the first hardware implementation of magic‑state cultivation on its Willow superconducting chip, achieving a 40‑fold error reduction and 99.99 % logical fidelity for T‑states. A week later Nvidia demonstrated a 104‑qubit simulation of the same technique on Jupiter, Europe’s inaugural exascale system powered by GH200 GPUs, claiming a 90 % qubit‑usage reduction versus traditional methods. Magic‑state cultivation, introduced by Google in 2024, refines noisy states into high‑fidelity resources without discarding large volumes, [...]