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The breaking point between fast- and slow-light in adegenerate two-level atomic system |
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| Authors: | Li Lu-Ming Hu Zhen-Yan Luo Bin and Guo Hong |
| Affiliation: | Department of Communication, Jiangxi Electric Power Information and Communication Company, Nanchang 330029, China; CREAM Group, State Key Laboratory of Advanced Optical Communication Systems and Networks (Peking University) and Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China |
| Abstract: | This paper investigates the breaking point between fast- and slow-light in a degenerate two-level atomic system, where fast-light can be converted to slow-light arbitrarily on a single transition line by adjusting the strength of the pumping field. An equivalent incoherent pumping rate is introduced in this simplified theoretical model which exploits the dependence of this feature. The experimental observation is presented as evidence of the breaking point where the injected power is about 0.08~{\rm mW}. |
| Keywords: | degenerate two-level atomic system breaking point group velocity |
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