# In VQE, what ansatz would be best used for a maximally entangled $n$-qubit $H$?

What ansatz would be best used for a maximally entangled n qubit H? I came across this question in the Qiskit textbook and I really don't know how I would answer it.

If we are given a Hamiltonian $$H$$ that can be represents with $$n$$-qubit, and promised that the ground state of $$H$$ is close to a maximally entangled $$n$$-qubit state, then we can use the fact that the maximal entangled $$n$$-qubit state $$|\psi\rangle$$ can be represent as: $$|\psi \rangle = \dfrac{|0\rangle^{\otimes n} + |1\rangle^{\otimes n} }{\sqrt{2}}$$ which can be created by using the circuit of the form:
here I created the state $$|\psi^5 \rangle = \dfrac{|0\rangle^{\otimes 5} + |1\rangle^{\otimes 5} }{\sqrt{2}}$$ but you get the idea of how to create such a state for arbitrary $$n$$ qubit system.
Or if you think the coefficients might be imaginary, then you can add another rotation to your Ansatze, says the $$R_Z$$ rotation and have something like this:
Note that if your state is indeed the maximal entangled state $$|\psi^5 \rangle = \dfrac{|0\rangle^{\otimes 5} + |1\rangle^{\otimes 5} }{\sqrt{2}}$$ then all the angles will be $$0$$ or very close to it, except the first angle $$a[0]$$, which will be $$\pi/2$$.