| Direct Measurement of Light Speed Reduction in a Rubidium Vapour Medium Coherently Prepared by Electromagnetically Induced Transparency |
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| 作者姓名： | 王谨 江开军 何明 李可 仲嘉琪 詹明生 涂鲜花 |
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| 作者单位： | StateKeyLaboratoryofMagneticResonanceandAtomicandMolecularPhysics,WuhanInstituteofPhysicsandMathematics,ChineseAcademyofSciences,Wuhan430071Mathematics,ChineseAcademyofSciences,Wuha |
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| 摘 要： | We have experimentally observed the reduction of light speed in a rubidium vapour medium coherently preparedby electromagnetically induced transparency. The light speed reduction was deduced by directly measuring thetime delay of a probe light when it passed through the medium. The time delay varies with the intensity of thecoupling laser, and the typical time delay we recorded was 1.8 μs, corresponding to a light speed of 56000 m/s.
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| 关 键 词： | 直接测量 量子力学 原子态 量子干涉 一致性 光速减缓 铷蒸汽室 电磁诱导 时间延迟 |
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