%0 Journal Article
%T The breaking point between fast- and slow-light in adegenerate two-level atomic system<br>
%A Li Lu-Ming
%A Hu Zhen-Yan
%A Luo Bin
%A Guo Hong
%A <br>
%J 中国物理 B
%D 2010
%I 
%X 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}.
%K degenerate two-level atomic system
%K breaking point
%K group velocity<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=D3FF57396DB52A0DDB177E92062F7B0E&yid=140ECF96957D60B2&vid=2A8D03AD8076A2E3&iid=B31275AF3241DB2D&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=23