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Complex Hadamard matrices for prime number

Quantum Physics 2014-10-09 v1

Abstract

In this paper we disprove the Haagerup statement that all complex Hadamard matrices of order five are equivalent with the Fourier matrix F5F_5 by constructing circulant matrices that lead to new Hadamard matrices. An important item is the construction of new mutually unbiased bases that are a basic concept of quantum theory and play an essential role in quantum tomography, quantum cryptografy, teleportation, construction of dense coding schemes, classical signal proccesing, etc.

Cite

@article{arxiv.1410.2134,
  title  = {Complex Hadamard matrices for prime number},
  author = {Petre Diţă},
  journal= {arXiv preprint arXiv:1410.2134},
  year   = {2014}
}

Comments

6 pages

R2 v1 2026-06-22T06:16:42.771Z