We propose a pushing gate for entangling two ions in a planar Coulomb crystal in the view of realizing large-scale quantum simulations. A tightly focused laser is irradiated from the direction perpendicular to the crystal plane and its spatial intensity profile generates a state-dependent force. We analyze the error sources in this scheme and obtain low infidelity. © 2009 Elsevier B.V. All rights reserved.
Kitaoka, M., Buluta, I. M., & Hasegawa, S. (2009). The pushing gate in a planar Coulomb crystal using a flat-top laser beam. Physics Letters, Section A: General, Atomic and Solid State Physics, 373(33), 2911–2916. https://doi.org/10.1016/j.physleta.2009.06.019