TY - JOUR

T1 - Lineshape-Asymmetry-Caused Shift in Atomic Interferometers

AU - Yudin, V. I.

AU - Prudnikov, O. N.

AU - Taichenachev, A. V.

AU - Basalaev, M. Yu

AU - Kapusta, D. N.

AU - Goncharov, A. N.

AU - Radchenko, M. D.

AU - Pal’chikov, V. G.

AU - Zhou, L.

AU - Zhan, M. S.

N1 - Yudin, V.I., Prudnikov, O.N., Taichenachev, A.V. et al. Lineshape-Asymmetry-Caused Shift in Atomic Interferometers. Jetp Lett. 122, 737–742 (2025). https://doi.org/10.1134/S002136402560942X This work was supported by the Russian Science Foundation (project no. 25-42-00093). L. Zhou and M.S. Zhang were supported by the National Natural Science Foundation of China (grant no. W2412045). V.I. Yudin was also supported by the Ministry of Science and Higher Education of the Russian Federation (project no. FSUS-2025-0011).

PY - 2025/12

Y1 - 2025/12

N2 - We investigate the shift caused by asymmetry of spectroscopic lineshape in atomic interferometers, which has not previously been discussed in the scientific literature. This asymmetry arises because laser field is frequency-chirped not only during the free-evolution intervals of atoms, but also during the Ramsey pulses. As a result, the effective detuning from the working atomic transition during the pulses also depends on the chirping rate, which, in turn, leads to the lineshape-asymmetry-caused shift (LACS). It is shown that this shift has an inverse cubic dependence of on the duration of the interval between the Ramsey pulses T, which markedly contrasts with the dependence typical in atomic interferometry. Therefore, the metrological importance of this shift substantially increases for compact atomic interferometers with a short baseline. For example, for interferometers-gravimeters using two-photon transitions in rubidium atoms, at ms we estimate the LACS shift and its variations at the level of 0.1–1 mGal, while for μs this can reach a value of 0.1–1 Gal.

AB - We investigate the shift caused by asymmetry of spectroscopic lineshape in atomic interferometers, which has not previously been discussed in the scientific literature. This asymmetry arises because laser field is frequency-chirped not only during the free-evolution intervals of atoms, but also during the Ramsey pulses. As a result, the effective detuning from the working atomic transition during the pulses also depends on the chirping rate, which, in turn, leads to the lineshape-asymmetry-caused shift (LACS). It is shown that this shift has an inverse cubic dependence of on the duration of the interval between the Ramsey pulses T, which markedly contrasts with the dependence typical in atomic interferometry. Therefore, the metrological importance of this shift substantially increases for compact atomic interferometers with a short baseline. For example, for interferometers-gravimeters using two-photon transitions in rubidium atoms, at ms we estimate the LACS shift and its variations at the level of 0.1–1 mGal, while for μs this can reach a value of 0.1–1 Gal.

UR - https://www.scopus.com/pages/publications/105028273398

UR - https://www.elibrary.ru/item.asp?id=87243943

UR - https://www.mendeley.com/catalogue/342ef7e1-911b-3b6e-9214-0e37fd74d5eb/

U2 - 10.1134/S002136402560942X

DO - 10.1134/S002136402560942X

M3 - Article

VL - 122

SP - 737

EP - 742

JO - JETP Letters

JF - JETP Letters

SN - 0021-3640

IS - 11

ER -