JUPITER Simulates 50 Qubits for First Time, Breaking 48-Qubit Record
Updated
Updated · ScienceDaily · May 12
JUPITER Simulates 50 Qubits for First Time, Breaking 48-Qubit Record
1 articles · Updated · ScienceDaily · May 12
Germany’s JUPITER exascale supercomputer fully simulated a universal 50-qubit quantum computer, the first such result and a step beyond the 48-qubit mark Jülich set in 2019.
2 petabytes of memory are needed for a 50-qubit simulation because each added qubit doubles computing and memory demands, with every gate operation affecting more than 2 quadrillion complex values.
More than 16,000 NVIDIA GH200 Superchips powered the run, while the upgraded JUQCS-50 software used CPU-GPU memory sharing, byte-encoding compression and dynamic data-transfer optimization to make it feasible.
JUQCS-50 will be opened to outside researchers and companies through JUNIQ, giving them a tool to test quantum algorithms and benchmark future supercomputers as real quantum hardware catches up.
This 50-qubit simulation is a record, but what real-world problem in medicine or finance will it solve first?
As Europe's JUPITER takes the quantum simulation lead, how will America's and Japan's hybrid computing strategies respond?
With supercomputers now simulating 50 qubits, are we accelerating toward quantum advantage or just building better classical machines?
Simulating 50 Qubits: JUPITER Supercomputer Sets World Record in Quantum Computing
Overview
In May 2026, the Jülich Supercomputing Centre and NVIDIA set a new world record by simulating a universal quantum computer with 50 qubits on the JUPITER supercomputer, surpassing the previous 48-qubit milestone. This achievement highlights rapid progress in modeling complex quantum systems and offers valuable insights for future quantum processors. The breakthrough was made possible through the JUPITER Research and Early Access Programme and a deep collaboration between Jülich experts and NVIDIA, who co-designed both hardware and software during JUPITER’s construction. This integrated approach ensured the supercomputer was optimized to tackle the immense challenges of quantum simulation.