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Full Quantum Theory of Transient-State Electromagnetically Induced Transparency |
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| Authors: | KUANG Le-Man ZENG Ai-Hua KUANG Zhen-Hua |
| Institution: | Department of Physics, Hunan Normal University, Changsha 410081, China;Department of Physics, Shaoyang University, Shaoyang 422000, China Department of Physics, Shaoyang University, Shaoyang 422000, China Department of Physics, Shaoyang University, Shaoyang 422000, China |
| Abstract: | We develop a full quantum theory of transient-state electromagnetically induced transparency (EIT) in thevapor of three-level A-type atoms interacting with probe and coupling lasers. As applications of the full quantum theory,we show that transient-state EIT medium exhibits normal dispersion and find that group velocities of both coupling andprobe lasers are greatly reduced. It is shown that the group velocity of the probe laser in the transient-state EIT case isequal to that in the adiabatic EIT case and that the coupling laser group velocity in the transient-state EIT is generallyless than that in the adiabatic EIT. |
| Keywords: | electromagnetically induced transparency probe laser coupling laser |
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