Open AccessStudy of factors affecting the light shift of the CPT resonance
Author(s) -
D. S. Chuchelov,
E. A. Tsygankov,
M. I. Vaskovskaya,
S. A. Zibrov,
V. L. Velichansky,
S. V. Petropavlovsky,
V. P. Yakovlev
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1686/1/012029
Subject(s) - simple (philosophy) , resonance (particle physics) , signal (programming language) , statistical physics , spectrum (functional analysis) , population , physics , computational physics , trapping , computer science , optics , atomic physics , quantum mechanics , ecology , philosophy , demography , epistemology , sociology , biology , programming language
Motivated by recent developments in atomic frequency standards employing the effect of coherent population trapping (CPT), we propose a theoretical framework for describing the CPT resonances. Our extended model includes several realistic experimental factors not accounted for in the standard approaches, namely, the FM-based technique for generating the error signal, skewed laser spectrum, etc. We provide a simple yet non-trivial analytical solution revealing the magnitude and structure of the light shift. The performance of the model is checked against numerical simulations, the agreement is good to perfect.