Effects of systematic phase errors on optimized quantum random-walk search algorithm*
Zhang Yu-Chaoa),b), Bao Wan-Sua),b)†, Wang Xianga),b), Fu Xiang-Quna),b)
       
Difference between the probability gaps Δ p 1 − Δ p 2 versus the scale of the database n with different phase errors. The different lines show results for different values of δ .