Entanglement cost of antisymmetric states and additivity of capacity of some quantum channels
Keiji Matsumoto, Fumitaka Yura · Journal of Physics A Mathematical and General · 2004
We study the entanglement cost of the states in the antisymmetric space, which consists of ( d − 1) d -dimensional systems. The cost is always log 2 ( d − 1) ebits when the state is divided into bipartite . Combined with the arguments in [6], additivity of channel capacity of some quantum channels is also shown.