Abstract:
For the Grover algorithm, we derive the exact formula of the norm of the amplitude in the marked state in a sine-function form and use this formula to derive the necessary and sufficient phase condition условие sinΔ≤|β| for this algorithm with arbitrary phase rotations. We show that the condition of identical rotation angles θ=ϕ, which is a special case of our condition, is a sufficient but not necessary phase condition.
Citation:
D. Li, X. Li, H. Huang, “Phase Condition for the Grover Algorithm”, TMF, 144:3 (2005), 472–483; Theoret. and Math. Phys., 144:3 (2005), 1279–1287