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Scientists trap light inside a magnet (cuny.edu)
69 points by geox on Aug 20, 2023 | hide | past | favorite | 14 comments



"Light trapped inside a magnetic crystal can strongly enhance its magneto-optical interactions."

It's an interesting article, but bad title. The novelty isn't in trapping light, but in how this material's optical properties change in response to a magnetic field.



I wonder if this will lead to co-applications with https://en.m.wikipedia.org/wiki/Ion_trap (s)


EM waves are bent by magnetic fields? i thought linearity/superposition meant they’d sum with the field and pass right through


Classically and in vacuum I think your intuition is right. However in this case, I think this is happening in bulk materials not in vacuum, and there are other interactions on the atomic scale so light propagating through the lattice has weird affects.



IIUC, they are using a semiconductor and the photons are transformed by the crystal into electron-hole pairs. It's a very non linear material.


I’ve always wondered, if/when AI eventually passes us in all that there is, all will be left is the soul, likely the one an only thing we can posses that they cannot.

Trapping light, energy at different vibration levels gives pause. Jokingly of course, but makes you wonder…


[flagged]


You couldn't hit DENY ALL?

I'd like to remind everyone talking about GDPR that cookie banners aren't even necessary under GDPR if you simply do not use tracking cookies on your website.


Nah. I kept clicking, but the banner wouldn’t go away. :(



I wouldn't, if I were you. https://news.ycombinator.com/item?id=32850799

I use Consent-o-matic - https://consentomatic.au.dk/


GDPR is an absolute novelty for EU laws as they are extra-territorial, they assume every website in the world that is accessible to EU citizens must protect EU citizen‘s data privacy rights.

Websites (eg their owners) can get slapped with an uncapped penalty fee that is ambiguously oriented around a company’s sales volume - disregarding that this could even bankrupt companies (as sales don’t mean net earnings).

Both artifacts (extra territoriality and severity) are extremely bold, something completely unique and unheard of from the EU, especially when fiddling around with American Businesses.

Which makes one wonder how a nobody like Jan Philipp Albrecht [1] came into a position to single handedly ruin browsing UX for the whole world.

Did he actually benefit US interests? Or that of the American cookie oligarchy (Meta, Google, Amazon, …)? After all he is a member of the Greens, which sort of have a history of being bought off from Washington [2].

[1] https://en.m.wikipedia.org/wiki/Jan_Philipp_Albrecht

[2] https://www.telepolis.de/features/Cem-Oezdemir-Der-gruene-US...


> can get slapped with an uncapped penalty fee

They were sick of US megacorps breaking laws and paying pitifull fines after a decade in court. It was more profitable to break the law and pay the fine.




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