论文标题
多物种离子晶体通过RF Paul Trap的连接点运输
Transport of multispecies ion crystals through a junction in an RF Paul trap
论文作者
论文摘要
我们报告了通过RF Paul Trap中的一个交界处的多物种离子晶体运输的首次演示。该陷阱是带有X连接的二维表面电极陷阱，并分段对照电极应用到该电极上，将随时间变化的电压用于控制陷阱表面上方的电势孔的形状和位置。我们要么运输单个$^{171} $ yb $^+$ ion或由$^{138} $ ba $^+$ ion与$^{171} $ yb $^+$ ion组成的水晶。我们通过通过连接点进行多次往返，然后回到初始井位，而无需冷却来表征运动激发。然后使用边带不对称测量最终激发。对于单个$^{171} $ yb $^+$ ion，用$ 4 \; \ m m iartrm {m/s} $平均速度在$ 0.013 \ pm0.001 $和$ 0.014 \ pm0.001 \ pm0.001 $ 0.013 \ pm0.001 $ QUANT A CORVITITION在旅行端口上，根据出口端口，取决于出口端口。对于BA-YB晶体，以相同速度运输可引起$ 0.013 \ pm0.001 $和$ 0.030 \ pm0.002 $ pm0.002 $ Quanta激励到质量模式的轴向中心。轴向拉伸模式的激发范围从$ 0.005 \ pm0.001 $到$ 0.021 \ pm0.001 $ Quanta每往旅行。
We report on the first demonstration of transport of a multispecies ion crystal through a junction in an RF Paul trap. The trap is a two-dimensional surface-electrode trap with an X junction and segmented control electrodes to which time-varying voltages are applied to control the shape and position of potential wells above the trap surface. We transport either a single $^{171}$Yb$^+$ ion or a crystal composed of a $^{138}$Ba$^+$ ion cotrapped with the $^{171}$Yb$^+$ ion to any port of the junction. We characterize the motional excitation by performing multiple round-trips through the junction and back to the initial well position without cooling. The final excitation is then measured using sideband asymmetry. For a single $^{171}$Yb$^+$ ion, transport with a $4\;\mathrm{m/s}$ average speed induces between $0.013\pm0.001$ and $0.014\pm0.001$ quanta of excitation per round trip, depending on the exit port. For a Ba-Yb crystal, transport at the same speed induces between $0.013\pm0.001$ and $0.030\pm0.002$ quanta per round trip of excitation to the axial center of mass mode. Excitation in the axial stretch mode ranges from $0.005\pm0.001$ to $0.021\pm0.001$ quanta per round trip.
