The construction of a universal quantum gate set for the $\mathrm{SU}(2{)}_k$ $(k=5,6,7)$ anyon models via genetic optimized algorithm

Abstract

We systematically study a numerical method for constructing a universal quantum gate set for topological quantum computation (TQC) using $\mathrm{SU}(2{)}_k$ anyon models. The $F$-matrices and $R$-symbols are computed through the $q$-deformed representation theory of $\mathrm{SU}(2)$, enabling precise determination of elementary braiding matrices (EBMs) for $\mathrm{SU}(2{)}_k$ anyon systems. Quantum gates are derived from these EBMs. One-qubit gates are synthesized using a genetic algorithm-enhanced Solovay--Kitaev algorithm (GA-enhanced SKA), while two-qubit gates are constructed through brute-force search or GA optimization to approximate the local equivalence class $[\mathrm{CNOT}]$. Implementing this framework for the $\mathrm{SU}(2{)}_5$, $\mathrm{SU}(2{)}_6$, and $\mathrm{SU}(2{)}_7$ models successfully generates the canonical universal gate set $\{H\text{-gate},T\text{-gate},\mathrm{CNOT}\text{-gate}\}$. These numerical results provide conclusive verification of the universal quantum computation capabilities inherent in $\mathrm{SU}(2{)}_k$ anyon models. Furthermore, we obtain exact implementations of the local equivalence class $[\mathrm{SWAP}]$ using nine EBMs in each model.

arXiv comment29 pages, 5 figures

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