A Short Note on the SWAP Fidelity

Reza Rajaei

A Short Note on the SWAP Fidelity

Functional Analysis 2026-08-02 v1

Authors: Reza Rajaei

Abstract

In this short note, we present a proof of a relatively expected result in a convex-optimization problem. In fact, we will show that a matrix at which the maximum of the SWAP fidelity is achieved has determinant zero.

Cite

@article{arxiv.2608.00906,
  title  = {A Short Note on the SWAP Fidelity},
  author = {Reza Rajaei},
  journal= {arXiv preprint arXiv:2608.00906},
  year   = {2026}
}