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6Recent advances in quantum frequency standards and other
quantum sensors
S.N. Bagayev1,2, D.V. Brazhnikov1,2, S.V. Chepurov1, A.N. Goncharov1-3, O.N. Prudnikov1, M.N. Skvortsov1, A.V. Taichenachev12*, V.I. Yudin1-3
1-Institute of Laser Physics SB RAS, Novosibirsk 630090, Russia 2- Novosibirsk State University, Novosibirsk 630090, Russia 3- Novosibirsk State Technical University, Novosibirsk 630073, Russia
In this talk we give a brief overview of our recent works on quantum sensors based on two different platforms: i) ultracold atoms and ions, including optical frequency standards [1,2] and atomic interferometers for inertial force sensing (gravimetry and gyroscopy) [3,4]; ii) alkali-metal vapors at room temperature, including atomic clocks based on coherent population trapping resonances [5], optical frequency standards based on saturation absorption resonances [6], and optically pumped magnetometers for ultra-weak magnetic field sensing [7]. Several new spectroscopic methods [8-10], including generalized Ramsey spectroscopy [11], are discussed as well as new methods of laser cooling and trapping of neutral atoms and ions [12-14], specially tailored for needs of quantum sensors.
These studies were partially supported by the Russian Science Foundation grant No. 23-12-00182, https://rscf.ru/project/23 -12-00182/.
[1] A.N. Goncharov, et al, Quantum Electronics, 48, 410-414 (2018).
[2] S.V. Chepurov, et al, Quantum Electronics, 51, 473-478 (2021).
[3] A.V. Taichenachev, et al, Journal of Physics: Conference Series, 1508, 012002 (2020).
[4] D.N. Kapusta, et al, Source of ultracold rubidium atoms for atomic interferometer-gravimeter, JETP, accepted (2024).
[5] M.N. Skvortsov, et al, Quantum electronics, 50, 576 (2020).
[6] D. Brazhnikov, et al, In European Frequency and Time Forum (2020, April).
[7] D. Brazhnikov, et al, Optics Letters, 45, 3309-3312 (2020).
[8] D.V. Brazhnikov, et al, Quantum Electronics, 50, 1015 (2020).
[9] D.V. Kovalenko, et al, Quantum Electronics, 51, 495-501 (2021).
[10] V.I. Yudin, et al, New Journal of Physics, 23, 023032 (2021).
[11] A.V. Taichenachev, V.I. Yudin, Generalized Ramsey Methods in Precision Laser Spectroscopy: from Atomic Clocks to Interferometers, Journal of Physics : Conference series, accepted (2024).
[12] O.N. Prudnikov, et al, Phys. Rev. A, 108, 043107 (2023).
[13] D.S. Krysenko, et al, Phys. Rev A, 108, 043114 (2023).
[14] O.N. Prudnikov, et al, Laser cooling of ytterbium-171 ion without the use of magnetic field, JETP, accepted (2024).
