I try to decompose ansatz into gate set in order to create a circuit in qiskit for QAOA algorithm. I don't understand how represent parametrized 2 qubit ansatz as circuit.
$ H{_B} = \sum_{j=1}^{n} {\sigma_j^x} $
$ H_{A} = \frac{1}{2}\sigma_z^1 + \frac{1}{2}\sigma_z^1\otimes\sigma_z^2 $
Ansatz for p=1
$ \left| \gamma_1,\beta_1 \right\rangle = e^{-i\beta_1H_B} e^{-i\gamma_1H_A} \left| ++ \right\rangle$
It is clear how a circuit for $ e^{-i\beta_1H_B} $ looks like, but I stuck in decomposing $ e^{-i\gamma_1H_A} $(more precisely it second term) into parametrised circuit acting on both qubits and depends on $\gamma_1$
Any help would be appreciated as well as any insight on multiple qubit decomposition.