30 citations · 114 across the 11 of their papers we have counts for
11 papers
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…
Practical implementation of mutually unbiased bases using quantum circuits
U. Seyfarth, L. L. Sanchez-Soto, G. Leuchs
The number of measurements necessary to perform the quantum state reconstruction of a system of qubits grows exponentially with the number of constituents, creating a major obstacl…
Temporal and spectral properties of quantum light
Birgit Stiller, Ulrich Seyfarth, Gerd Leuchs
The modes of the electromagnetic field are solutions of Maxwell's equations taking into account the material boundary conditions. The field modes of classical optics - properly nor…
Structure of the sets of mutually unbiased bases with cyclic symmetry
Ulrich Seyfarth, Luis L. Sanchez-Soto, Gerd Leuchs
Mutually unbiased bases that can be cyclically generated by a single unitary operator are of special interest, since they can be readily implemented in practice. We show that, for…