Sympathetic cooling of ${}^{9}B{e}^{+}$ and ${}^{24}M{g}^{+}$ for quantum logic

M. D. Barrett, B. DeMarco, T. Schaetz +9

We demonstrate the cooling of a two species ion crystal consisting of one ${}^{9}B{e}^{+}$ and one ${}^{24}M{g}^{+}$ ion. Since the respective cooling transitions of these two species are separa…