Quantum Frequency Arrangements, Quantum Mixed Orthogonal Arrays and Entangled States

In this work, we introduce notions of quantum frequency arrangements consisting of quantum frequency squares, cubes, hypercubes and a notion of orthogonality between them. We also propose a notion of quantum mixed orthogonal array (QMOA). By using irredundant mixed orthogonal array proposed by Goyeneche et al. we can obtain k-uniform states of heterogeneous systems from quantum frequency arrangements and QMOAs. Furthermore, some examples are presented to illustrate our method. key words: quantum frequency arrangements, quantum mixed orthogonal array, irredundant orthogonal array, k-uniform states