Direct measurement of the Wigner time delay for the scattering of light by a single atom
作者： Ronan Bourgain , S. Jennewein , Antoine Browaeys , Yvan R. P. Sortais , Joseph Pellegrino
DOI: 10.1364/OL.38.001963
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摘要: We have implemented the Gedanken experiment of an individual atom scattering a wave packet near-resonant light, and measured associated Wigner time delay as function frequency light. In our apparatus, behaves two-level system we found delays large 42 ns at resonance, limited by lifetime excited state. This is important parameter in problem collective ensemble interacting particles, which encountered many areas physics.
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