Experimental NMR Realization of A Generalized Quantum Search Algorithm

Details Experimental NMR Realization of A Generalized Quantum Search Algorithm Experimental NMR Realization of A Generalized Quantum Search Algorithm

2000-09-13

arxiv.org/abs/quant-ph/0009059v2

Phys. Lett. A286(2001)121-6

Physics

Quantum Physics

12 pages, 2 figures, accepted for publication in Plysics Letters A

Scientific paper

10.1016/S0375-9601(01)00416-9

A generalized quantum search algorithm, where phase inversions for the marked state and the prepared state are replaced by $\pi/2$ phase rotations, is realized in a 2-qubit NMR heteronuclear system. The quantum algorithm searches a marked state with a smaller step compared to standard Grover algorithm. Phase matching requirement in quantum searching is demonstrated by comparing it with another generalized algorithm where the two phase rotations are $\pi/2$ and $3\pi/2$ respectively. Pulse sequences which include non 90 degree pulses are given.

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