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AamsterC2
- 51
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So I understand that scientists have been able to slow light to extremely low speeds using Bose-Einstein Condensates and even without them (https://physics.aps.org/story/v3/st37) and if I understand this correctly they slow light the same way water or air does; atoms absorb the photons and re-emit them which makes it take longer for the light to travel through the substance. My question is, does this process change the frequency or wavelength of the light while it is moving through, or after it has fully passed through the BEC? My assumption is that being slowed to such a degree in the condensate would possibly change some of the lights properties temporarily or that some amount of energy is lost to the substance as heat which would change the wavelength of the light