Phys. Rev. Lett. 103, 120502 (2009) [4 pages]Entanglement and Tunable Spin-Spin Couplings between Trapped Ions Using Multiple Transverse ModesSee Also: Erratum Received 2 May 2009; published 16 September 2009 We demonstrate tunable spin-spin couplings between trapped atomic ions, mediated by laser forces on multiple transverse collective modes of motion. A σxσx-type Ising interaction is realized between quantum bits stored in the ground hyperfine clock states of 171Yb+ ions. We demonstrate entangling gates and tailor the spin-spin couplings with two and three trapped ions. The use of closely spaced transverse modes provides a new class of interactions relevant to quantum computing and simulation with large collections of ions in a single crystal. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.120502
DOI:
10.1103/PhysRevLett.103.120502
PACS:
03.67.Pp, 03.67.Ac, 03.67.Lx, 37.10.Ty
See AlsoErratum: K. Kim, M.-S. Chang, R. Islam, S. Korenblit, L.-M. Duan, and C. Monroe, Erratum: Entanglement and Tunable Spin-Spin Couplings between Trapped Ions Using Multiple Transverse Modes [Phys. Rev. Lett. 103, 120502 (2009).], Phys. Rev. Lett. 105, 109901 (2010). |
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