Journal of Quantum Optics, Volume. 25, Issue 1, 48(2019)
Manipulation of Quantum Interference with Correlated Phase Fluctuation in Atomic System
The manipulation of quantum interference using correlated phase fluctuation in an atomic system is proposed. The collisions among atoms and the coupling between the atoms and the external reservoir environment result in the random phase fluctuations of the atomic energy levels. The effect of the phase fluctuations and their correlation on the atomic coherence and quantum interference is studied. The results show that the correlated and anticorrelated phase fluctuations lead to the destructive quantum interference (suppressed absorption of the probe field) and the constructive quantum interference (enhanced absorption of the probe field),respectively. The quantum interference vanishes under certain condition,and the response of the atoms to the probe field is determined by the Autler-Townes splitting. Finally,the influence of the Rabi frequency of the coupling field on the quantum interference is studied. When the coupling field is relatively weak,the quantum interference can be efficiently manipulated using the correlated phase fluctuations. When the coupling field is strong,the quantum interference can be ignored.
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WU Jin-ze, LIU Jin-hong, ZHANG Yue-ying, HE Yan-yan, ZHANG Jun-xiang. Manipulation of Quantum Interference with Correlated Phase Fluctuation in Atomic System[J]. Journal of Quantum Optics, 2019, 25(1): 48
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Received: Oct. 18, 2018
Accepted: --
Published Online: Apr. 5, 2019
The Author Email: WU Jin-ze (wujinze-qc@sina.cn)