English

Mean king's problem with mutually unbiased bases and orthogonal Latin squares

Quantum Physics 2009-11-11 v2

Abstract

The mean king's problem with maximal mutually unbiased bases (MUB's) in general dimension d is investigated. It is shown that a solution of the problem exists if and only if the maximal number (d+1) of orthogonal Latin squares exists. This implies that there is no solution in d=6 or d=10 dimensions even if the maximal number of MUB's exists in these dimensions.

Keywords

Cite

@article{arxiv.quant-ph/0502092,
  title  = {Mean king's problem with mutually unbiased bases and orthogonal Latin squares},
  author = {A. Hayashi and M. Horibe and T. Hashimoto},
  journal= {arXiv preprint arXiv:quant-ph/0502092},
  year   = {2009}
}

Comments

5 pages, 1 figure, v2: typos corrected. journal version

R2 v1 2026-07-22T19:47:55.316Z