Fully Programmable All-to-All Gates via Semi-Global Control

Quantum Art proposes a novel architecture for trapped-ion quantum processors: a fully programmable all-to-all entangling gate that circumvents the complexity of per-qubit addressing. Instead of applying independent control to each ion, the scheme uses global (or semi-global) fields that illuminate subsets (or even the whole set) of ions simultaneously. The key advance is demonstrating how to engineer programmable gates in a way that still allows arbitrary logic across all qubit pairs, in a computationally efficient way.

Arbitrary control, simple design

Crucially, the method retains full programmability without requiring costly, high-precision optical routing, equidistant ionsor individual qubit controls. This simplification lowers hardware overhead and pushes forward large-scale trapped-ion systems.

Published 17 September 2025, in arXiv

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