When i programmed a circuit in IBM Q Experience using QisKit Jupyter, i went through state-vector simulation with Bloch multi-vector representation to check different qubit's entanglement. So, i have checked two of the many cases given in the file - entanglement between q(0) and q(9) and every-time i found it entangled. But its an ideal case. So,how much we can consider it correct or at-least valid?
After going through a long data analysis in IBM Q Experience, finally i got an answer of my own question. Only 2nd picture Bloch Multivector.png shown above will show entanglement and the first picture is showing disentangled situation. Although \ket{10} is an entangled state in its own but in statevector simulator this is not applicable as my data saying. The data will be available after publication of my paper. But till the statement in this answer, i found correct. And here is corresponding histogram i obtained in zz basis measurement for the same circuit for which the Bloch Multivector is presented above.
The answer added last to this question is now confirmed by my research work completed last day. In the page no. 8 and 9, Bloch sphere representation depicting good results for final entanglement.
Preprint An architecture for repeater based quantum communication by ...
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