Quantum Entanglement in Practice

[Pixelex]

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.*

 

[anuttarasammyak]

Hi. Though I am a layman on quantum computing, I would like to share the article in July,
https://www.hpcwire.com/off-the-wir...or-computational-hardness-in-quantum-systems/ for your survey.

 

[DennisN]

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).