| 杜丹，王振华，彭志华.V系统中实现群速度由慢光速到超光速的转换[J].南华大学学报(自然科学版),2009,23(4):49~52.[DU Dan,WANG Zhen-hua,PENG Zhi-hua.The Change of Group Velocity:from Subluminal to Superluminal Light Propagation in the V System[J].Journal of University of South China(Science and Technology),2009,23(4):49~52.] |
| V系统中实现群速度由慢光速到超光速的转换 |
| The Change of Group Velocity:from Subluminal to Superluminal Light Propagation in the V System |
| 投稿时间：2009-05-05 |
| DOI： |
| 中文关键词: V系统 群速度 慢光速 超光速 相干布局捕获 |
| 英文关键词:V system group velocity subluminal light propagation superluminal light propagation coherent-population-trapping |
| 基金项目: |
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| 中文摘要: |
| 在近简并的封闭三能级V系统中，一束弱激光探测场的群速度可以通过控制一单色驱动场的强度实现慢光速到超光速的转换.采用修饰态的方法在物理上解释了产生这种现象的可能原因. |
| 英文摘要: |
| This paper reveals that the group velocity of a weak laser probe field can be manipulated by controlling the intensity of the driving field applied to a near-degenerate closed three-level V system.Such control can even cause the probe propagation to change from subluminal to superluminal.And the results mentioned above can be understood in terms of dressed states. |
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