Non-separable matrix builders for signal processing, quantum information and mimo applications

Document Type : 2022 CCGTA IN SOUTH FLA

Authors

1 University of Galway (Formerly National University of Ireland Galway), Ireland

2 Friar's Hill, Galway, Ireland

Abstract

Matrices are built and designed by applying procedures from lower order matrices. Matrix tensor products, direct sums or multiplication of matrices are such procedures and a matrix built from these is said to be a  separable matrix. A non-separable matrix is a matrix which is not separable and is often referred to as an entangled matrix. The matrices built may retain properties of the lower order matrices or may also acquire new desired properties not inherent in the constituents. Here design methods for non-separable matrices of required types are derived. These can retain properties of lower order matrices or have new desirable properties. Infinite series of required type non-separable matrices are constructible by the general methods.
 
Non-separable matrices of required types are required for applications and other uses; they can capture the structure in a unique way and thus perform much better than separable matrices. General new methods are developed with which to construct multidimensional entangled paraunitary matrices; these have applications for wavelet and filter bank design. The constructions are used to design new systems of non-separable unitary matrices; these have applications in quantum information theory. Some consequences include the design of full diversity constellations of unitary matrices, which are used in MIMO systems, and methods to design infinite series of special types of Hadamard matrices.

Keywords

Main Subjects

References

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International Journal of Group Theory
Volume 13, Issue 3 - Serial Number 3
2022 CCGTA IN SOUTH FLA
September 2024
Pages 271-291

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History

  • Receive Date: 13 January 2023
  • Revise Date: 22 August 2023
  • Accept Date: 23 August 2023
  • Published Online: 01 September 2024

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