Phase Time for the Tunneling of Ultracold V-Type Atoms Through a Mazer Cavity

作     者：Fazal Badshah Abdul Basit Hamad Ali Qing He Guo-Qin Ge 

作者机构：School of Physics Huazhong University of Science and Technology Quantum Optics Lab.Department of Physics COMSATS University Islamabad College of Science Zhongyuan University of Technology 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2019年第71卷第5期

页      面：610-616页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.11750110411 and 11274132 

主　　题：ultracold atoms mazer cavity phase time superclassicality 

摘      要：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.