I'm having a hard time grasping the concept of light crystals. Can someone explain like I'm a peasant?
Wow that is really cool. Now they need to keep linking those together because even slowed down by 100,000 times the new Tri-Photon still moves at 6706 miles per hour.
This is fascinating and I think some of the technologies that come out of new discoveries in electromagnetism could be beyond anything we can predict.
But I'm confused about the statement that "photons don't interact with each other," "they go through each other." As particles that may be true, but like... Photons are waves too-- they produce INTERFERENCE patterns. If that doesn't imply that they interact then I don't know what qualifies as interaction...
This could just be a case of "press release article totally misses the point" (actual paper is paywalled), but they kind of bury the lede here:
>But **after passing through the cloud, the photons creep along 100,000 times slower than normal**. Also, instead of exiting the cloud randomly, the photons come through in pairs or triplets. These pairs and triplets also give off a different energy signature, a phase shift, that tells the researchers the photons are **interacting**.
Now, photons interacting and 'slowing down' *within* a medium is relatively normal. Them doing so *after* exiting the medium is completely insane. It would allow such weirdness as creation of light pulses that do not obey the diffraction limit (e.g. high power laser pulses that can be collimated over large distances from small diameter emitters).
Can someone who has access to the paper itself confirm if this is just the normal press release ignorance, or if this really is the creation of stable photon 'molecules' outside of a controlled medium?