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arXiv · 0905.0225

Entanglement and Tunable Spin-Spin Couplings Between Trapped Ions Using Multiple Transverse Modes

K. Kim·M. -S. Chang·R. Islam·S. Korenblit·L. -M. Duan·C. Monroe
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Abstract

We demonstrate tunable spin-spin couplings between trapped atomic ions, mediated by laser forces on multiple transverse collective modes of motion. A $\sigma_x \sigma_x$-type Ising interaction is realized between quantum bits stored in the ground hyperfine clock states of Yb 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.

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K. Kim, M. -S. Chang, R. Islam, S. Korenblit, L. -M. Duan, C. Monroe. 2009-05-02. Entanglement and Tunable Spin-Spin Couplings Between Trapped Ions Using Multiple Transverse Modes. https://doi.org/10.1103/physrevlett.103.120502

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