Doubly ionized lanthanum as a qubit candidate for quantum networks

Doubly ionized lanthanum as a qubit candidate for quantum networks
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DOI:
10.1103/physreva.105.042617
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发表时间:
2021-09
期刊:
影响因子:
2.9
通讯作者:
S. Olmschenk
S. Olmschenk
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
S. Olmschenk

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我们提出了双电离镧(La)作为量子网络的一个可能的量子比特候选人。原子中最低能级之间的跃迁是在红外线中,这使得直接的物质-光界面能够进行长距离量子通信。这些跃迁也可用于直接激光冷却捕获的La离子。离子丰富的超精细结构可以允许量子比特存储在磁场不敏感状态中,以及原子-光子纠缠的协议。
We propose doubly-ionized lanthanum (La) as a possible qubit candidate for quantum networks. Transitions between the lowest levels in the atom are in the infrared, enabling a direct matter-light interface amenable to long-distance quantum communication. These transitions could also be used to directly laser-cool trapped La ions. The rich hyperfine structure of the ion may allow for a qubit stored in magnetic-field insensitive states, as well as protocols for atom-photon entanglement.