2016/03/17 by Spencer Fallek, Creston Herold, Brian McMahon +3 · 1 citation
Physics and Astronomy · #physics.atom-ph #quant-ph
paper · pdf · doi:10.1088/1367-2630/18/8/083030
published as New J. Phys.18(2016)083030
arxiv created 2016/03/17 · arxiv updated 2016/08/12
Using trapped ion quantum bits in a scalable microfabricated surface trap, we perform the Bernstein-Vazirani algorithm. Our architecture relies upon ion transport and can readily be expanded to larger systems. The algorithm is demonstrated using two- and three-ion chains. For three ions, an improvement is achieved compared to a classical system using the same number of oracle queries. For two ions and one query, we correctly determine an unknown bit string with probability 97.6(8)%. For three ions, we succeed with probability 80.9(3)%.