Research output: Contribution to journal › Article › peer-review
Generalised Ramsey methods for suppressing light shifts in atomic clocks based on the coherent population trapping effect. / Kovalenko, D. V.; Taichenachev, A. V.; Basalaev, M. Y. et al.
In: Quantum Electronics, Vol. 51, No. 6, 06.2021, p. 495-501.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Generalised Ramsey methods for suppressing light shifts in atomic clocks based on the coherent population trapping effect
AU - Kovalenko, D. V.
AU - Taichenachev, A. V.
AU - Basalaev, M. Y.
AU - Yudin, V. I.
AU - Zanon-Willette, T.
N1 - This work was supported by the RF President's Grants Council (Grant No. MK-161.2020.2), the Russian Foundation for Basic Research (Grant Nos 19-32-90181, 20-02-00505, 20-52-18004, and 19-29-11014), the Ministry of Science and Higher Education of the Russian Federation (Grant No. FSUS-2020-0036), and the BASIS Foundation for the Advancement of Theoretical Physics and Mathematics (Project No. 19-1-1-67-2). Publisher Copyright: © 2021 Kvantovaya Elektronika and IOP Publishing Limited. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/6
Y1 - 2021/6
N2 - We study the possibility of suppressing light shifts in Ramsey spectroscopy of coherent population trapping (CPT) using generalised autobalanced Ramsey spectroscopy (GABRS) and combined error signal in Ramsey spectroscopy (CESRS). We consider CPT resonances excited by a coherent bichromatic field in an open L-system with a 'trap' state. Using a rigorous mathematical proof and numerical calculations, these methods are shown to lead to complete suppression of the light shift and its fluctuations. Implementation of GABRS and CESRS in CPT clocks can markedly improve accuracy and long-term stability of these devices. These methods can also be applied in atomic CPT magnetometers and interferometers.
AB - We study the possibility of suppressing light shifts in Ramsey spectroscopy of coherent population trapping (CPT) using generalised autobalanced Ramsey spectroscopy (GABRS) and combined error signal in Ramsey spectroscopy (CESRS). We consider CPT resonances excited by a coherent bichromatic field in an open L-system with a 'trap' state. Using a rigorous mathematical proof and numerical calculations, these methods are shown to lead to complete suppression of the light shift and its fluctuations. Implementation of GABRS and CESRS in CPT clocks can markedly improve accuracy and long-term stability of these devices. These methods can also be applied in atomic CPT magnetometers and interferometers.
KW - Atomic clocks and magnetometers
KW - Coherent population trapping resonances
KW - Light shifts
KW - Ramsey spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85107954509&partnerID=8YFLogxK
U2 - 10.1070/QEL17582
DO - 10.1070/QEL17582
M3 - Article
AN - SCOPUS:85107954509
VL - 51
SP - 495
EP - 501
JO - Quantum Electronics
JF - Quantum Electronics
SN - 1063-7818
IS - 6
ER -
ID: 28865278