Exact Entanglement Cost of Multi-Qubit Bound Entangled States
  We report the exact entanglement cost of a class of multiqubit bound entangled states, computed in the context of a universal model for multipartite state preparation. The exact amount of entanglement needed to prepare such states are determined by first obtaining lower bounds using a cut-set approach, and then providing explicit local protocols achieving the lower bound. 
Somshubhro Bandyopadhyay, Vwani P. Roychowdhury