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A Microwave Qubit Gate Reaches 97 Nanoseconds
Autler-Townes level engineering produces a reported 99.40 percent CZ fidelity without frequency tuning.
Summary
Autler-Townes level engineering produces a reported 99.40 percent CZ fidelity without frequency tuning.
The experiment reshapes qubit nonlinearity with the Autler-Townes effect while leaving the computational subspace and coherence time largely undisturbed. The resulting all-microwave CZ gate ran in 97 nanoseconds at 99.40(9) percent reported fidelity; static decoherence dominated the remaining error.
Why it matters
Autler-Townes level engineering produces a reported 99.40 percent CZ fidelity without frequency tuning.
Limits and context
No additional limitation was separately recorded.
Key claims
Autler-Townes level engineering produces a reported 99.40 percent CZ fidelity without frequency tuning.
Evidence: source-2026-11-07-017
Sources
- arXiv preprint 2611.07967, original v1arXiv · primary research
Corrections
: Publication note: This November 7 edition was assembled before its scheduled 9:00 AM America/Detroit reveal but is being published late after recovery from a local build interruption. Its original reporting, image-generation times and scheduled publishAt are preserved.