The Poincar\'e half-plane for informationally complete POVMs
Quantum Physics
2018-01-12 v1
Abstract
It has been shown that classes of (minimal asymmetric) informationally complete POVMs in dimension d can be built using the multiparticle Pauli group acting on appropriate fiducial states [M. Planat and Z. Gedik, R. Soc. open sci. 4, 170387 (2017)]. The latter states may also be derived starting from the Poincar\'e upper half-plane model H. For doing this, one translates the congruence (or non-congruence) subgroups of index d of the modular group into groups of permutation gates whose some of the eigenstates are the seeked fiducials. The structure of some IC-POVMs is found to be intimately related to the Kochen-Specker theorem.
Cite
@article{arxiv.1709.06768,
title = {The Poincar\'e half-plane for informationally complete POVMs},
author = {Michel Planat},
journal= {arXiv preprint arXiv:1709.06768},
year = {2018}
}
Comments
15 pages, 6 figs