Fig. 6: Comparisons of Trotterized ring- and complete-XY mixers in QAOA with unrestricted optimization at p = 1, 2, 3 and with the OLS method at p = 100.
From: Alignment between initial state and mixer improves QAOA performance for constrained optimization
We report the mean approximation ratio over 10 instances with N = 6 and K = 3 with error bars denoting the standard errors of the mean estimation. A larger Trotter number consistently results in better performance for the complete mixer. However, for QAOA with an approximated ring-XY mixer, we observe a more robust QAOA performance.
