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Probably a stupid question, but will we ever have something like a microwave to make things cold? Is there a reason this can't exist?
(lemmy.dbzer0.com)
this post was submitted on 14 Sep 2023
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Allow me to introduce you to this
https://en.m.wikipedia.org/wiki/Laser_cooling
Thanks Mr Freeze!
Can I get an ELI5 of this principle? I read the Doppler cooling part but I can't connect the dots.
Heat energy is the amount of particle wiggling. With precisely tuned and oriented lasers you can clamp a particle in space, thus prevent it from wiggling.
No wiggling -> very cold.
It's like slowing cars by crashing another car into them. But it's photons instead from the exact opposite direction.