Insights Why Entangled Photon-Polarization Qubits Violate Bell’s Inequality

Thread starter Greg Bernhardt
Start date 4 minutes ago

4 minutes ago

Greg Bernhardt

Admin

TL;DR Summary: Entangled photons violate the Bell-CHSH inequality because quantum mechanics gives discrete pass/fail outcomes rather than smooth classical averages. Their correlations exceed what any hidden-variable theory allows, reaching the maximum quantum limit and revealing nonlocal behavior.

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles.

In her YouTube video Bell’s Theorem Experiments on Entangled Photons, Dr. Fugate shows how polarization-entangled photons violate Bell’s inequality. In this Insight, I will use quantum information theory to explain why such entangled photon-polarization qubits violate the version of Bell’s inequality due to John Clauser, Michael Horne, Abner Shimony, and Richard Holt known as the Clauser-Horne-Shimony-Holt (CHSH) inequality...

Source: https://www.physicsforums.com/insig...ls-inequality-per-quantum-information-theory/

written by @RUTA

Thread 'Schrödinger equation and classical wave equation'

Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...

View full post »

Thread 'Is a table levitating possible, even at a minuscule probability?'

I am not sure if this falls under classical physics or quantum physics or somewhere else (so feel free to put it in the right section), but is there any micro state of the universe one can think of which if evolved under the current laws of nature, inevitably results in outcomes such as a table levitating? That example is just a random one I decided to choose but I'm really asking about any event that would seem like a "miracle" to the ordinary person (i.e. any event that doesn't seem to...

View full post »