Sub-kelvin temperature management in ion traps for optical clocks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F20%3AN0000005" target="_blank" >RIV/00177016:_____/20:N0000005 - isvavai.cz</a>
Result on the web
<a href="https://aip.scitation.org/doi/10.1063/5.0024693" target="_blank" >https://aip.scitation.org/doi/10.1063/5.0024693</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Sub-kelvin temperature management in ion traps for optical clocks
Original language description
The uncertainty of the ac Stark shift due to thermal radiation represents a major contribution to the systematic uncertainty budget of stateof-the-art optical atomic clocks. In the case of optical clocks based on trapped ions, the thermal behavior of the rf-driven ion trap must be precisely known. This determination is even more difficult when scalable linear ion traps are used. Such traps enable a more advanced control of multiple ions and have become a platform for new applications in quantum metrology, simulation, and computation. Nevertheless, their complex structure makes it more difficult to precisely determine its temperature in operation and thus the related systematic uncertainty. We present here scalable linear ion traps for optical clocks, which exhibit very low temperature rise under operation. We use a finite-element model refined with experimental measurements to determine the thermal distribution in the ion trap and the temperature at the position of the ions. The trap temperature is investigated at different rf-drive frequencies and amplitudes with an infrared camera and integrated temperature sensors. We show that for typical trapping parameters for In+, Al+, Lu+, Ca+, Sr+, or Yb+ ions, the temperature rise at the position of the ions resulting from rf heating of the trap stays below 700 mK and can be controlled with an uncertainty on the order of a few 100 mK maximum. The corresponding uncertainty of the trap-related blackbody radiation shift is in the low 10−19 and even 10−20 regime for 171Yb+(E3) and 115In+, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Review of Scientific Instruments
ISSN
0034-6748
e-ISSN
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Volume of the periodical
91
Issue of the periodical within the volume
listopad
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
111301
UT code for WoS article
000591855700001
EID of the result in the Scopus database
2-s2.0-85096993369