High-fidelity quantum control using ion crystals in a penning trap. - Michael J. Biercuk; Hermann Uys; Aaron P. Vandevender; Nobuyasu Shiga; Wayne M. Itano; John J. Bollinger (Quantum Inf. Comput., 2009)

Engineered two-dimensional Ising interactions in a trapped-ion quantum simulator with hundreds of spins. - Joseph W. Britton; Brian C. Sawyer; Adam C. Keith; C.-C. Joseph Wang; James K. Freericks; Hermann Uys; Michael J. Biercuk; John J. Bollinger (Nat., 2012)