In this letter we prove local indistinguishability of four orthogonal activable bound entangled states shared among even number of parties. All reduced density matrices of such states are maximally mixed. We further proceed to establish a multipartite quantum data hiding scheme on those states and explore its power and limitations.
@article{arxiv.0711.0475,
title = {Local Indistinguishability and Possibility of Hiding cbits in Activable Bound Entangled States},
author = {Indrani Chattopadhyay and Debasis Sarkar},
journal= {arXiv preprint arXiv:0711.0475},
year = {2009}
}