Acta Physica Sinica, Volume. 69, Issue 14, 140601-1(2020)

Investigation of cold atom collision frequency shift measured by rapid adiabatic passage in cesium fountain clock

Yong Guan1...2,3, Dan-Dan Liu1,2,3, Xin-Liang Wang1,2,3, Hui Zhang1,2,3, Jun-Ru Shi1,2,3, Yang Bai1,2,3, Jun Ruan1,2,*, and Shou-Gang Zhang12 |Show fewer author(s)
Author Affiliations
  • 1National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
  • 2Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(11)
    Map of coordinate transformation
    Scheme of microwave circuit generating RAP pulses.
    Transition probability as a function of b0 and δ0 with 8 ms pulse starts 4 ms after atoms entering the cavity: (a) δ0 = 5 kHz, with different b0; (b) b0 = 10 kHz, with different δ0.
    Time evolution of deviation excitation.
    Transition probability as a function of time parameters, δ0 = 5 kHz, b0 = 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.
    Transition probabilty as a function of center frequency detuning.
    Transition probability as a function of b0 for a 5 kHz δ0 pulse start at 5 different points and end at 10 ms after entering cavity: (a) b0 as the abscissa; (b) b0T as the abscissa.
    Transition probability as a function of (a) b0 for five different δ0, (b) pulse duration with δ0 = 5 kHz, and b0 = 10 kHz.
    (a) Transition probability as a function of b0 for 100, 0, –100 Hz center frequency detuning; (b) transition probability as a function of center frequency detuning for δ0 = 5 kHz and b0 = 10 kHz.
    Stability of atoms number ratio.
    Transition probability as a function of magnetic field
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    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

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    Paper Information

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    Received: Nov. 27, 2019

    Accepted: --

    Published Online: Dec. 28, 2020

    The Author Email:

    DOI:10.7498/aps.69.20191800

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