Complex Hadamard matrices, consisting of unimodular entries with arbitrary phases, play an
important role in the theory of quantum information. We review basic properties of complex …

Ausgangspunkt der vorliegenden Arbeit waren Untersuchungen von Strukturen im Rahmen
der Wahrscheinlichkeitstheorie, welche der Quantentheorie zugrunde liegt. Dabei wurden …

This is a one-to-one translation of a German-written Ph. D. thesis from 1999. Quantum
designs are sets of orthogonal projection matrices in finite (b)-dimensional Hilbert spaces. A …

We investigate the recovery of signals exhibiting a sparse representation in a general (ie,
possibly redundant or incomplete) dictionary that are corrupted by additive noise admitting a …

Up-to-date resource on Hadamard matrices Hadamard Matrices: Constructions using
Number Theory and Algebra provides students with a discussion of the basic definitions …

Spectral techniques facilitate the design and testing of today's increasingly complex digital
devices There is heightened interest in spectral techniques for the design of digital devices …

Smart card-based remote authentication schemes are widely used in multi-medical-server-
based telecare medicine information systems (TMISs). Biometric is one of the most …

Decision diagram (DD) techniques are very popular in the electronic design automation
(EDA) of integrated circuits, and for good reason. They can accurately simulate logic design …

We propose the first practical and secure way to integrate the iris biometric into
cryptographic applications. A repeatable binary string, which we call a biometric key, is …

This paper discusses two types of polyphase sequence sets, which will successfully provide
CDMA systems without co-channel interference. One is a type of ZCZ sets, whose periodic …