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Slow light in cool atoms

An experiment with atoms at nanokelvin temperatures has produced the remarkable observation of light pulses travelling at velocities of only 17 m sāˆ’1. The large optical nonlinearities seen in this system may open up new opportunities in quantum optics.

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Figure 1: The experimental set-up of Hau et al.1.

References

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Marangos, J. Slow light in cool atoms. Nature 397, 559ā€“560 (1999). https://doi.org/10.1038/17475

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