Critical points of the linear entropy for pure L-qubit states
Quantum Physics
2015-01-08 v4 Mathematical Physics
math.MP
Abstract
We present a substancially improved version of the method proposed in Sawicki et al (2012, 2014) for finding critical points of the linear entropy for L-qubit system. The new approach is based on the corespondance between momentum maps for abelian and non-abelian groups, as described in Kirwan (1984). The proposed method can be implemented numerically much easier than the previous one.
Keywords
Cite
@article{arxiv.1407.2639,
title = {Critical points of the linear entropy for pure L-qubit states},
author = {Tomasz Maciazek and Adam Sawicki},
journal= {arXiv preprint arXiv:1407.2639},
year = {2015}
}
Comments
16 pages, 3 figures