Entanglement and identical particles

relativityfan
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hello,

can we say that identical particles in atoms like electrons are entangled since their total wavefunction is antisymmetric when we swap the states?

is there any condition for this entanglement?
 
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relativityfan said:
hello,

can we say that identical particles in atoms like electrons are entangled since their total wavefunction is antisymmetric when we swap the states?

is there any condition for this entanglement?

Two electrons in an atom are not "identical" in the sense that I think you mean, and no, this doesn't satisfy conditions for entanglement.
 
You can clearly separate the quantum wavefunctions of the two electrons, they are therefor not "entangled".
 
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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