Cooling of trapped ions by resonant charge exchange
Cooling of trapped ions by resonant charge exchange
复制标题
通过共振电荷交换冷却捕获的离子
DOI:
10.1103/physreva.97.041401
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发表时间:
2017
影响因子:
2.9
通讯作者:
S. Rangwala
中科院分区:
文献类型:
--
作者:
S. Dutta;S. Rangwala
The two most widely used ion cooling methods are laser cooling and sympathetic cooling by elastic collisions (ECs). Here we demonstrate another method of cooling ions that is based on resonant charge exchange (RCE) between the trapped ion and the ultracold parent atom. Specifically, trapped Cs$^{+}$ ions are cooled by collisions with co-trapped, ultracold Cs atoms and, separately, by collisions with co-trapped, ultracold Rb atoms. We observe that the cooling of Cs$^{+}$ ions by Cs atoms is more efficient than cooling of Cs$^{+}$ ions by Rb atoms. This signals the presence of a cooling mechanism apart from the elastic ion-atom collision channel for the Cs-Cs$^{+}$ case, which is cooling by RCE. The efficiency of cooling by RCE is experimentally determined and the per-collision cooling is found to be two orders of magnitude higher than cooling by EC. The result provides the experimental basis for future studies on charge transport by electron hopping in atom-ion hybrid systems.
影响因子:
8.6
作者:
Kruekow, Artjom;Mohammadi, Amir;Greene, Chris H.
通讯作者:
Greene, Chris H.
影响因子:
19.6
作者:
Ratschbacher, Lothar;Zipkes, Christoph;Koehl, Michael
通讯作者:
Koehl, Michael
影响因子:
35
作者:
Lambrecht, Alexander;Schmidt, Julian;Schaetz, Tobias
通讯作者:
Schaetz, Tobias