Fig. 1

Quantum circuit for GAS corresponding to an objective function \(E(\textbf{x}) - y = a_0x_0x_1 + a_1x_0 + a_2\), which is composed of \(\textbf{A}_{y}\), \(\textbf{D}\), \(\textbf{O}\), and \(\textbf{G} = \textbf{A}_{y}\textbf{D}\textbf{A}_{y}^\textrm{H}\textbf{O}\)