One parameter family of indecomposable
optimal entanglement witnesses arising from generalized Choi maps
by Kil-Chan Ha and Seung-Hyeok Kye
Phys. Rev A, 84 (2011), 024302.
arXiv:1107.2720v1
In the recent paper [Chruscinski and Wudarski, arXiv:1105.4821], it was conjectured that the entanglement witnesses arising from some generalized Choi maps are optimal. We show that this conjecture is true. Furthermore, we show that they provide a one parameter family of indecomposable optimal entanglement witnesses.