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'Really, really weird': Physicists entangle two moving atoms for the first time, validating 'spooky' quantum theory (www.livescience.com)

submitted 2 weeks ago by Gsus4@mander.xyz to c/physics@mander.xyz

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[–] supersquirrel@sopuli.xyz 0 points 2 weeks ago (1 children)

Wait photons don't interact with gravity at all? It is just that the warping of slacetime by gravity effects light indirectly?

[–] Gsus4@mander.xyz 0 points 2 weeks ago* (last edited 2 weeks ago)

Photons do have energy (in the stress-energy tensor), so they curve spacetime too, but all particles follow geodesics regardless of mass...so...I guess it is all the same from gravity's PoV...it is QM that makes a difference...but entanglement doesn't either (like gravity)...wink wink, nudge nudge...

PS: ok, ok, radiation's energy density is 1/a⁴ and baryons is 1/a³, so there is a distinction there to having inertia towards gravity.