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arXiv · 1807.09675

Toward an Optimal Quantum Algorithm for Polynomial Factorization over Finite Fields

Javad Doliskani
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Abstract

We present a randomized quantum algorithm for polynomial factorization over finite fields. For polynomials of degree $n$ over a finite field $\F_q$, the average-case complexity of our algorithm is an expected $O(n^{1 + o(1)} \log^{2 + o(1)}q)$ bit operations. Only for a negligible subset of polynomials of degree $n$ our algorithm has a higher complexity of $O(n^{4 / 3 + o(1)} \log^{2 + o(1)}q)$ bit operations. This breaks the classical $3/2$-exponent barrier for polynomial factorization over finite fields \cite{guo2016alg}.

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Javad Doliskani. 2018-07-25. Toward an Optimal Quantum Algorithm for Polynomial Factorization over Finite Fields. https://arxiv.org/abs/1807.09675

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