Preprint
Jul 2026
Local Universality and Structural Certificates for Minimal Fixed-Depth Two-Qutrit Gate Decomposition
We study a dimension-saturating fixed-core ansatz in which four copies of a fixed, non-tunable two-qutrit core $K\in SU(9)$ are interleaved with five adjustable local layers from $L=SU(3)\otimes SU(3)$. Since $\dim SU(9)=80$ and $5\dim L=80$, this is the shortest fixed-core architecture not excluded by parameter counti...
Yurui Liu, Ruoting Dou, Peng Xu et al.
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