Transfer of zero-order coherence matrix along spin-1/2 chain

In this work, we study transfer of coherence matrices along spin-1/2 chains various length. Unlike higher order matrices, zero-order matrix can be perfectly transferred if its elements are properly fixed. certain cases, to provide the perfect transfer, an extended receiver together with optimized unitary transformation has included into protocol.In asymptotic transferable for infinitely long chain is considered and deviation a state from studied as function length sizes receiver. The problem arbitrary parameter via nondiagonal also using