10 citations · 15 across the 3 of their papers we have counts for
4 papers · 1 filter
covariant -parametrized maps
Andrei B. Klimov, Ulrich Seyfarth, Hubert de Guise +1
We propose a practical recipe to compute the -parametrized maps for systems with symmetry using a connection between the and symbols through the action…
Wigner function for SU(1,1)
U. Seyfarth, A. B. Klimov, H. de Guise +2
In spite of their potential usefulness, Wigner functions for systems with SU(1,1) symmetry have not been explored thus far. We address this problem from a physically-motivated pers…
Cyclic Mutually Unbiased Bases and Quantum Public-Key Encryption
Ulrich Seyfarth
The thesis is mainly about the construction and implementation of cyclic mutually unbiased bases, dealing with different entanglement structures by discussing the related group str…
Continuous Variable Quantum Cryptography -- Discussion of Various Realisations with Qudits
Ulrich Seyfarth
We expand the recently discussed continuous-variable quantum key distribution scheme of Heid and Luetkenhaus (2006) to qudits with a lossy but noiseless quantum channel. Postselect…