Hello,
Does anybody know a two qubit gate which entangle this qubits?
I am looking for a tool which help me get average from two or more qubits. I think I could treat that entanglement as an avarage, because all qubits will have same values when I observe anyone.

Thanks for responses,
Łukasz

Edit:
I think about universal entaglement gate which do entanglement state for every two qubits, I have started thinking if that gate even exists.