B Quantum Entanglement in Practice

Pixelex
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How is quantum entanglement done in practice for different particles with different properties eg. spin, polarization, etc.? Why is entanglement useful for quantum circuits?

*I am curious about how they are actually entangled and used. I don't know how is entanglement applied in practice so I don't know why people mention it is useful for quantum computing.*
 
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Pixelex said:
How is quantum entanglement done in practice for different particles with different properties eg. spin, polarization, etc.?
For production of entangled photons see e.g. spontaneous parametric down-conversion (SPDC).
 
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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
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