Fig. 12: An example of Trotterizing the unitary \({{{\bf{U}}}}={e}^{-i\beta {{{{\bf{H}}}}}_{S}^{{{{\rm{XY}}}}}}\) with N = 6 using different numbers of step with β = 0.5.
From: Alignment between initial state and mixer improves QAOA performance for constrained optimization
The blue lines represent the relative error in approximating the unitary, while the orange lines depict the fidelity between the ground states of exact and effective Hamiltonians.
