Experimental realization of a quantum algorithm
  Nuclear magnetic resonance techniques are used to realize a quantum algorithm experimentally. The algorithm allows a simple NMR quantum computer to determine global properties of an unknown function requiring fewer function ``calls'' than is possible using a classical computer. 
Isaac L. Chuang (1), Lieven M.K. Vandersypen (2), Xinlan Zhou (2),   Debbie W. Leung (3) and Seth Lloyd (4) ((1) IBM Almaden...