Abstract
The entangling power of a bipartite unitary operation shows the maximum created entanglement with the product input states. For an arbitrary two-qubit unitary operation, it is sufficient to consider its normalized operation U with parameters c₀,c₁,c₂ and c₃. We show how to compute the entangling power of U when c₂=c₃. In particular we construct the analytical expressions of entangling power of such U for two examples. We also construct the entangling power of bipartite unitary operations of Schmidt rank two for any dimensions.