KODEX — KLINQ: QLINSOLVE

REAL quantum linear solver — a variational quantum linear solver (VQLS) prepares the solution of a small reduced-MHD linear system with a real quantum circuit (sim now, hardware pluggable), plus an honest fault-tolerant HHL resource estimate. No advantage at real scale; quantum's role in fusion is post-~2036</p><p><strong>Benchmark:</strong> **REAL quantum linear solver** (VQLS): 4×4 reduced-MHD solve fidelity 1.0 vs classical (rel-resid 0.0); FT-HHL ~4e+04 phys qubits — no advantage, role post-~2036</p><p>Part of KODEX, the Kronos Family of Codes — a benchmarked AI/ML fusion surrogate suite with calibrated uncertainty and an abstention gate (<code>predict(x) → (y, uncertainty, in_domain)</code>).

Provenance: references 10.5281/zenodo.21842371. Home: <a href="kronosfusionenergy.com/kodex/klinq">https://kronosfusionenergy.com/kodex/klinq</a> · suite: <a href="github.com/KronosFE/kronos-ml">https://github.com/KronosFE/kronos-ml</a>. Licensed under Apache-2.0.