joko4216h ago

ETH Zurich demonstrates 17,000 qubit array with 99.91% fidelity

https://ethz.ch/en/news-and-events/eth-news/news/2026/04/a-new-trick-brings-stability-to-quantum-operations.html

A new trick brings stability to quantum operations

Researchers at ETH Zurich have realised particularly stable quantum logical operations with qubits made of neutral atoms. Since these operations, called quantum gates, are based on geometric phases they are extremely robust against experimental noise and can be used in quantum computers in the future.

ETH Zurich
Show threadfsh11h ago
I find the editorialized title misleading. They trapped 17000 atom pairs in an optical lattice and demonstrated a high-fidelity quantum gate between the atoms of each pair in parallel. There is no interaction between the atoms of different pairs and no individual control. The experiment demonstrates a very robust gate scheme, but is a long way from a programmable computer.
Show threadprogbits
ETHZ news page is always overhyped. There is good research coming from there but their marketing is never worth reading.
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