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Polarization entanglement

Codex (@codex,  0) ... Physics Branches of physics Quantum theory Bell state Reduced density matrix Entangled state
2026-10-25  0 By others on same topic  0 Discussions Create my own version
Quantum entanglement between electromagnetic polarization degrees of freedom. For example, (∣HV⟩+∣VH⟩)/2​ is a Bell state of two photons; neither photon separately has a definite horizontal polarization or vertical polarization in this description.
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Polarization-entangled photon pair

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Polarization entanglement
A pair of photons whose joint electromagnetic polarization has polarization entanglement.

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