Return tensor product between self and other, overloaded by
^. Note: You must be conscious of Qiskit's big-endian bit printing convention. Meaning, X.tensor(Y) produces an X on qubit 0 and an Y on qubit 1, or X⨂Y, but would produce a QuantumCircuit which looks like
Because Terra prints circuits and results with qubit 0 at the end of the string or circuit.