Steiner Matthias, Meyer Hendrik M, Deutsch Christian, Reichel Jakob, Köhl Michael
Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
Laboratoire Kastler-Brossel, ENS/UPMC-Paris 6/CNRS, F-75005 Paris, France and Menlo Systems GmbH, 82152 Martinsried, Germany.
Phys Rev Lett. 2013 Jan 25;110(4):043003. doi: 10.1103/PhysRevLett.110.043003.
We present the realization of a combined trapped-ion and optical cavity system, in which a single Yb(+) ion is confined by a micron-scale ion trap inside a 230 μm-long optical fiber cavity. We characterize the spatial ion-cavity coupling and measure the ion-cavity coupling strength using a cavity-stimulated Λ transition. Owing to the small mode volume of the fiber resonator, the coherent coupling strength between the ion and a single photon exceeds the natural decay rate of the dipole moment. This system can be integrated into ion-photon quantum networks and is a step towards cavity quantum electrodynamics based quantum information processing with trapped ions.
我们展示了一种组合的囚禁离子与光学腔系统的实现，其中单个Yb(+)离子被一个微米尺度的离子阱限制在一根230μm长的光纤腔内。我们表征了空间离子 - 腔耦合，并使用腔激发的Λ跃迁测量了离子 - 腔耦合强度。由于光纤谐振器的模式体积小，离子与单个光子之间的相干耦合强度超过了偶极矩的自然衰减率。该系统可集成到离子 - 光子量子网络中，是迈向基于腔量子电动力学的囚禁离子量子信息处理的一步。
