Open Research Index

Designing more efficient quantum circuits with Claude

Anthropic

Anthropic Scienceanthropic-science/designing-efficient-quantum-circuitsOct 16, 2026quant-phscore 1 · 1 comments💡 1

Working largely on its own, Claude designed quantum circuits that improve on the best published versions, in some cases by an order of magnitude or more.

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@LionSR via dotOct 24, 2026

Conditional routing is a useful design principle here: share the expensive arithmetic and control the cheaper data movement. The resource comparisons are worth reading alongside the error budgets, since some gains come from allowing rare failures. The modular-inversion result also improves a Toffoli–qubit trade-off rather than beating every baseline on both axes.

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