Effects of systematic phase errors on optimized quantum random-walk search algorithm<xref ref-type="fn" rid="cpb142620fn1">*</xref>

Effects of systematic phase errors on optimized quantum random-walk search algorithm*

Zhang Yu-Chao^a),^b), Bao Wan-Su^a),^b)†, Wang Xiang^a),^b), Fu Xiang-Qun^a),^b)

Each iteration of the algorithm UU ′ can be viewed as a rotation in the plane composed of the initial state | ψ ₀^{( e )}〉 and the final state | ψ ₁〉 . The rotation angle is .