Paper Info
Title
Efficient Sympathetic Cooling In Mixed Barium And Ytterbium Ion Chains
Abstract
We study sympathetic cooling of the radial ion motion in a linear RF trap in mixed barium-ytterbium chains. Barium ions are Doppler-cooled, while ytterbium ions are cooled through their interaction with cold barium ions. We estimate the efficiency of sympathetic cooling by measuring the average occupation quantum numbers, and thus the temperature, of all radial normal modes of motion in the ion chain. The full set of orderings in a chain of two barium and two ytterbium ions have been probed, and we show that the average thermal occupation numbers for all chain configurations strongly depend on the trap aspect ratio. We demonstrate efficient sympathetic cooling of all radial normal modes for the trap aspect ratio of approximately 2.9.
Year
DOI
Venue
2021
10.1007/s11128-021-03112-1
QUANTUM INFORMATION PROCESSING
Keywords
DocType
Volume
Trapped ions, Doppler cooling, Sympathetic cooling, Trap aspect ratio
Journal
20
Issue
ISSN
Citations 
5
1570-0755
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Tomasz Sakrejda100.34
Liudmila A. Zhukas200.34
Boris B. Blinov3102.46