Implementation of the refined Deutsch-Jozsa algorithn on a 3-bit NMR quantum computer

Details Implementation of the refined Deutsch-Jozsa algorithn on a 3-bit NMR quantum computer Implementation of the refined Deutsch-Jozsa algorithn on a 3-bit NMR quantum computer

1999-10-04

arxiv.org/abs/quant-ph/9910015v1

Phys. Rev. A 62, 022312 (2000).

Physics

Quantum Physics

5 pages, 2 figures, 1 tables, REVTeX

Scientific paper

10.1103/PhysRevA.62.022312

We implemented the refined Deutsch-Jozsa algorithm on a 3-bit nuclear magnetic resonance quantum computer, which is the meaningful test of quantum parallelism because qubits are entangled. All of the balanced and constant functions were realized exactly. The results agree well with theoretical predictions and clearly distinguish the balanced functions from constant functions. Efficient refocusing schemes were proposed for the soft z-pulse and J-coupling and it is proved that the thermal equilibrium state gives the same results as the pure state for this algorithm.

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