Yong Guan, Dan-Dan Liu, Xin-Liang Wang, Hui Zhang, Jun-Ru Shi, Yang Bai, Jun Ruan, Shou-Gang Zhang. Investigation of cold atom collision frequency shift measured by rapid adiabatic passage in cesium fountain clock [J]. Acta Physica Sinica, 2020, 69(14): 140601-1
- Acta Physica Sinica
- Vol. 69, Issue 14, 140601-1 (2020)
Fig. 1. Map of coordinate transformation
Fig. 2. Scheme of microwave circuit generating RAP pulses.
Fig. 3. Transition probability as a function of b 0 and δ 0 with 8 ms pulse starts 4 ms after atoms entering the cavity: (a) δ 0 = 5 kHz, with different b 0; (b) b 0 = 10 kHz, with different δ 0.
Fig. 4. Time evolution of deviation excitation.
Fig. 5. Transition probability as a function of time parameters, δ 0 = 5 kHz, b 0 = 10 kHz, atoms enter selection cavity at time 0: (a) Pulse duration remaining symmetric about the central point of cavity; (b) start point of pulse with a fixed duration of 8 ms.
Fig. 6. Transition probabilty as a function of center frequency detuning.
Fig. 7. Transition probability as a function of b 0 for a 5 kHz δ 0 pulse start at 5 different points and end at 10 ms after entering cavity: (a) b 0 as the abscissa; (b) b 0T as the abscissa.
Fig. 8. Transition probability as a function of (a) b 0 for five different δ 0, (b) pulse duration with δ 0 = 5 kHz, and b 0 = 10 kHz.
Fig. 9. (a) Transition probability as a function of b 0 for 100, 0, –100 Hz center frequency detuning; (b) transition probability as a function of center frequency detuning for δ 0 = 5 kHz and b 0 = 10 kHz.
Fig. 10. Stability of atoms number ratio.
Fig. 11. Transition probability as a function of magnetic field
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