Demonstrating quantum algorithm acceleration with NMR quantum computer

Details Demonstrating quantum algorithm acceleration with NMR quantum computer Demonstrating quantum algorithm acceleration with NMR quantum computer

2004-05-11

arxiv.org/abs/quant-ph/0405050v3

Physics

Quantum Physics

6 pages, revtex, 1 table, experimental details added, 1 figure added

Scientific paper

10.1103/PhysRevA.70.052319

In general, a quantum circuit is constructed with elementary gates, such as one-qubit gates and CNOT gates. It is possible, however, to speed up the execution time of a given circuit by merging those elementary gates together into larger modules, such that the desired unitary matrix expressing the algorithm is directly implemented. We demonstrate this by taking the two-qubit Grover's algorithm implemented in NMR quantum computation, whose pseudopure state is generated by cyclic permutations of the state populations. This is the first exact time-optimal solution, to our knowledge, obtained for a self-contained quantum algorithm.

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