English

Quantum Algorithms for Computing Maximal Quantum $f$-divergence and Kubo-Ando means

Quantum Physics 2025-11-14 v1

Abstract

The development of quantum computation has resulted in many quantum algorithms for a wide array of tasks. Recently, there is a growing interest in using quantum computing techniques to estimate or compute quantum information-theoretic quantities such as Renyi entropy, Von Neumann entropy, matrix means, etc. Motivated by these results, we present quantum algorithms for computing the maximal quantum ff-divergences and the operator-theoretic matrix Kubo--Ando means. Both of them involve Renyi entropies, matrix means as special cases, thus implying the universality of our framework.

Keywords

Cite

@article{arxiv.2511.10607,
  title  = {Quantum Algorithms for Computing Maximal Quantum $f$-divergence and Kubo-Ando means},
  author = {Trung Hoa Dinh and Nhat A. Nghiem},
  journal= {arXiv preprint arXiv:2511.10607},
  year   = {2025}
}
R2 v1 2026-07-01T07:36:21.016Z