Unitary gate discrimination
= Unitary gate discrimination
To distinguish two gates in one use without an ancilla, choose an input $|\psi\rangle$ and discriminate the output states $U_1|\psi\rangle$ and $U_2|\psi\rangle$.
= Unitary gate discrimination
To distinguish two gates in one use without an ancilla, choose an input $|\psi\rangle$ and discriminate the output states $U_1|\psi\rangle$ and $U_2|\psi\rangle$.