Violation of Bell Inequality with Unentangled Photons
Original: Violation of Bell inequality with unentangled photons
Key topics
A groundbreaking study has shaken things up by demonstrating a violation of Bell's inequality using unentangled photons, sparking intense debate about the implications for quantum communication. Commenters are buzzing with excitement, wondering if this breakthrough could lead to cheaper quantum dots and better atomic clocks, or even revolutionize mobile broadband for critical applications like medical video transmission. As one commenter mused, if nonlocal photonic communication is real, do we still need satellite internet for mobile broadband? The discussion also touches on the potential bandwidth limits of entanglement-based systems, with some questioning whether they'll remain relegated to low-bitrate uses like key distribution.
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- 01Story posted
Aug 29, 2025 at 6:51 PM EDT
4 months ago
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Aug 29, 2025 at 7:27 PM EDT
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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.
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.
> 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.