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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2022, Volume 116, Issue 2, Pages 74–79
DOI: https://doi.org/10.31857/S1234567822140026 (Mi jetpl6712) 		 
This article is cited in 7 scientific papers (total in 7 papers)

OPTICS AND NUCLEAR PHYSICS

Determination of the heating rate and temperature of an ion chain in a linear Paul trap by the dephasing of Rabi oscillations

N. V. Semeninab, A. S. Borisenkoba, I. V. Zalivakoa, I. A. Semerikova, M. D. Aksenova, K. Yu. Khabarovaabc, N. N. Kolachevskyac

a Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
b Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi, Moscow region, 141701 Russia
c Russian Quantum Center, Moscow, 121205 Russia
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DOI: https://doi.org/10.31857/S1234567822140026
Abstract: The optimization of the parameters of laser cooling and the investigation of the heating rate in ion traps require the measurement of the temperature of ion chains for which the Lamb–Dicke regime is satisfied. A novel method based on the investigation of the dynamics of Rabi oscillations at a narrow electron transition in an individual ion of the chain has been suggested for such measurement. An analytical expression for the population of the upper state as a function of the excitation time is derived taking into account the thermal distribution of phonons over the vibrational modes of a chain with an arbitrary number of ions. The method is tested experimentally for the chain of five $^{171}$Yb$^+$ ions using the quadrupole transition at 435 nm, as well as for a single ion. The heating rate measured for the axial vibrational mode in the implemented trap is $8\times 10^3$ phonons/s.
Funding agency Grant number
Russian Foundation for Basic Research 20-32-90020
Лидирующий исследовательский центр “Квантовые вычисления” 014/20
The analysis of experimental data was carried out by A.S. Borisenko and was supported by the Russian Foundation for Basic Research (project no. 20-32-90020). All other studies, including the development of the theoretical model, were carried out by the rest of the authors and were supported by the Leading Research Center on Quantum Computing (grant agreement no. 014/20).
Received: 23.05.2022
Revised: 04.06.2022
Accepted: 04.06.2022
English version:
Journal of Experimental and Theoretical Physics Letters, 2022, Volume 116, Issue 2, Pages 77–82
DOI: https://doi.org/10.1134/S0021364022601099
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: N. V. Semenin, A. S. Borisenko, I. V. Zalivako, I. A. Semerikov, M. D. Aksenov, K. Yu. Khabarova, N. N. Kolachevsky, “Determination of the heating rate and temperature of an ion chain in a linear Paul trap by the dephasing of Rabi oscillations”, Pis'ma v Zh. Èksper. Teoret. Fiz., 116:2 (2022), 74–79; JETP Letters, 116:2 (2022), 77–82
Citation in format AMSBIB
\Bibitem{SemBorZal22}
\by N.~V.~Semenin, A.~S.~Borisenko, I.~V.~Zalivako, I.~A.~Semerikov, M.~D.~Aksenov, K.~Yu.~Khabarova, N.~N.~Kolachevsky
\paper Determination of the heating rate and temperature of an ion chain in a linear Paul trap by the dephasing of Rabi oscillations
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2022
\vol 116
\issue 2
\pages 74--79
\mathnet{http://mi.mathnet.ru/jetpl6712}
\crossref{https://doi.org/10.31857/S1234567822140026}
\edn{https://elibrary.ru/ixsnyv}
\transl
\jour JETP Letters
\yr 2022
\vol 116
\issue 2
\pages 77--82
\crossref{https://doi.org/10.1134/S0021364022601099}
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