Violation of Bell inequality with unentangled photons

19 pointsposted 5 months ago
by mudil

4 Comments

westurner

5 months ago

"Violation of Bell Inequality with Unentangled Photons" (2025) https://arxiv.org/abs/2507.07756 :

> By analyzing the measurement of four-photon frustrated interference within the standard Bell-test formalism, we find a violation of Bell inequality by more than four standard deviations.

com

5 months ago

If it’s true, do we get cheaper quantum dots and better atomic clocks?

westurner

5 months ago

Do we then need satellite internet for mobile broadband video for doctors and paramedics if information sharing by nonlocal photonic communication is real; despite the false limit and "loopholes"?

Would this simple experiment and less destructive photonic observation show the nonlocal communication described in the OT article?

"Name of this Q/QC experiment given a light polarization-entanglement complementary relation" (2025) https://quantumcomputing.stackexchange.com/questions/44435/n... :

> Given the ability to infer photonic phase from intensity, isn't it possible to determine whether destructive measurement causes state change in entangled photons? Is there a name for this experiment; and would it test this?

FWIU call blocking is not possible without centralized routing; so we wouldn't even all want quantum phones that don't need towers or satellites that may be affecting the jet stream and thereby the heat.

gus_massa

5 months ago

> Do we then need satellite internet for mobile broadband video for doctors and paramedics if information sharing by nonlocal photonic communication is real; despite the false limit and "loopholes"?

Yes we still need satellite internet. The doctors and paramedics can generate some random numbers and the hospital can generate some random numbers, and once they meet again they can look at them and see a strange correlation.

But if the hospital wants to tell something to the doctors and paramedics or vice versa, they must use a classic communication channel.