Title :
Estimation of the light shift in Ramsey-coherent population trapping
Author :
Yano, Yuichiro ; Goka, Shigeyoshi ; Kajita, Masatoshi
Author_Institution :
Grad. Sch. of Sci. & Eng., Tokyo Metropolitan Univ., Hachioji, Japan
Abstract :
We both numerically and analytically investigate on the light shift in Ramsey-CPT resonance for compact atomic clocks. The numerical calculation of the light shift is based on a density matrix analysis in Λ-type three state model. And the analytical method leads to an estimation equation of light shift in the Raman-Ramsey scheme. The estimation equation expresses the relationship between light shift and all pulse parameters. The results show that the estimation equation was reproduced well as the numerical results.
Keywords :
atomic clocks; radiation pressure; Λ-type three state model; Raman-Ramsey scheme; Ramsey-CPT resonance; Ramsey-coherent population trapping; compact atomic clocks; density matrix analysis; estimation equation; light shift estimation; Atomic clocks; Charge carrier processes; Estimation; Mathematical model; Sociology; Stationary state; Statistics; Coherent population trapping; Raman-Ramsey scheme; estimation equation; light shift;
Conference_Titel :
Frequency Control Symposium & the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4799-8865-5
DOI :
10.1109/FCS.2015.7138814
