Phase Time for the Tunneling of Ultracold V-Type Atoms Through a Mazer Cavity |
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Authors: | Fazal Badshah Abdul Basit Hamad Ali Qing He Guo-Qin Ge |
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Institution: | 1. School of Physics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China;2. Quantum Optics Lab. Department of Physics, COMSATS University Islamabad, Pakistan;3. College of Science, Zhongyuan University of Technology, 41 Zhongyuan Road, Zhengzhou 450000, China |
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Abstract: | We study the tunneling time of ultracold V-type atoms interacting a high quality microwave cavity. Here atomic coherence is introduced in the system by a strong driving field which couples the two lower states of the three-level atom. It is found that in the presence of coherence, mazer action or the scattering like nature of the interaction may be examined for extended energies of the incident cold atoms. Our results show that position and amplitudes of the peak values of the phase time(traversal time) may be very effectively controlled by the coherent driving field. Further, here we obtained superclassical values of the phase time corresponding to much higher values of the transmission amplitudes of the tunneling atoms which may be advantageous in the possible experimental realization of the superclassical tunneling time of the traversing cold atoms. In addition, we examine a mirror reflection type symmetry in the phase time curve for a judicious choice of the external driving field. |
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Keywords: | ultracold atoms mazer cavity phase time superclassicality |
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