A new method to construct families of complex Hadamard matrices in even dimensions
arXiv:1210.7673 · doi:10.1063/1.4794068
Abstract
We present a new method for constructing affine families of complex Hadamard matrices in every even dimension. This method has an intersection with the Diţă construction and it generalizes the Szöllősi's method. We reproduce well-known results, extend some families and present new families of complex Hadamard matrices in even dimensions. In particular, found more than 13 millon inequivalent affine families of complex Hadamard matrices in dimension 32. We also find analytical restrictions for any set of four mutually unbiased bases existing in dimension six.
Improved version. Published in JMP. 29 pages, no figures