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Leung, P. H., Landsman, K. A., Figgatt, C., Linke, N. M., Monroe, C., & Brown, K. R. (2018). Robust 2-Qubit Gates in a Linear Ion Crystal Using a Frequency-Modulated Driving Force. Physical Review Letters, 120. http://doi.org/10.1103/PhysRevLett.120.020501 (Original work published January 2018)
Landsman, K. A., Wu, Y., Leung, P. H., Zhu, D., Linke, N. M., Brown, K. R., … Monroe, C. (2019). Two-qubit entangling gates within arbitrarily long chains of trapped ions. Physical Review A, 100. http://doi.org/10.1103/PhysRevA.100.022332 (Original work published August 2019)