Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland.
Quantum Center, ETH Zürich, 8093 Zürich, Switzerland.
Phys Rev Lett. 2023 Mar 31;130(13):133201. doi: 10.1103/PhysRevLett.130.133201.
Using a single calcium ion confined in a surface-electrode trap, we study the interaction of electric quadrupole transitions with a passively phase-stable optical standing wave field sourced by photonics integrated within the trap. We characterize the optical fields through spatial mapping of the Rabi frequencies of both carrier and motional sideband transitions as well as ac Stark shifts. Our measurements demonstrate the ability to engineer favorable combinations of sideband and carrier Rabi frequency as well as ac Stark shifts for specific tasks in quantum state control and metrology.
我们利用单个钙离子在表面电极阱中受限的情况，研究了电四极跃迁与由陷阱内集成光子学产生的被动相位稳定的光驻波场之间的相互作用。我们通过对载频和运动边带跃迁的拉比频率以及交流斯塔克频移的空间映射来描述光场。我们的测量结果表明，在量子态控制和计量学等特定任务中，有能力设计有利于边带和载波拉比频率以及交流斯塔克频移的组合。
