104 qubits: Nvidia and Jülich simulate a fault-tolerant quantum processor
The simulation runs on the JUPITER supercomputer and adds realistic noise, helping researchers refine designs before hardware is built.
A quantum computer is a new kind of machine that still needs a lot of research. Scientists used a giant computer to test a design before building it. That saves time and finds mistakes early.
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Why it matters
Testing a quantum design on a normal computer is faster and cheaper than building a quantum machine and finding problems later.
Watch: a research step toward useful quantum computers.
The details
- Nvidia calls it the largest comprehensive simulation of a fault-tolerant quantum processor to date.
- It used magic state cultivation, which needs 90% fewer qubits than earlier methods.
- It ran on JUPITER at the Jülich Supercomputing Centre, scaling to 8,192 GPUs.
- It cut weeks of work to days; an earlier simulation covered 50 qubits without noise.
- It uses the cuQuantum library and CUDA-Q.
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