Have fullerene molecules been (quantum) entangled yet?

San K
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have fullerene molecules (buckyball) been (quantum) entangled yet?
 
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What kind of entanglement are you talking about?

In the broadest sense you could say they get entangled all the time, since they interact with each other and with surfaces through dispersion forces, which could be consideded a form of entanglement.
 
alxm said:
What kind of entanglement are you talking about?

In the broadest sense you could say they get entangled all the time, since they interact with each other and with surfaces through dispersion forces, which could be consideded a form of entanglement.

agreed alxm.

i was referring to the kind of entanglement what is generated by having one photon strike a BBO crystal and when two photons with half the wavelength/frequency (?) emerge from the other end of the BBO.

the energy of the single photon has been transferred to two photons with half the energy each.

these photons are now entangled with opposite spins
 
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Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!

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