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Success probability in Shor's Algorithm

Quantum Physics 2025-06-17 v2 Data Structures and Algorithms

Abstract

This paper aims to determine the exact success probability at each step of Shor's algorithm. Although the literature usually provides a lower bound on this probability, we present an improved bound. The derived formulas enable the identification of all failure cases in Shor's algorithm, which correspond to a success probability of zero. A simulation routine is provided to evaluate the theoretical success probability for a given integer when its prime factorization is known with potential applications in quantum resource estimation and algorithm benchmarking.

Keywords

Cite

@article{arxiv.2505.00433,
  title  = {Success probability in Shor's Algorithm},
  author = {Ali Abbassi and Lionel Bayle},
  journal= {arXiv preprint arXiv:2505.00433},
  year   = {2025}
}

Comments

V2, references update