- #1
Talisman
- 95
- 6
The "cause" of entanglement / coupling
Hi all, two questions. I don't have a physics background (but have a decent mathematical background, and have dabbled in QM).
* What is the difference between entanglement and coupling? Wikipedia says they're "almost" the same thing, except for the distance at which they occur. Mathematically, I guess they're the same (i.e., represented by a non-separable joint state)?
* What are various possible causes of entanglement? Examples that come to mind:
1) Pair production -- byproduct of conservation laws.
2) Entanglement with measurement apparatus -- intuitively, that the device (if it's accurate) must indicate the result corresponding to the eigenstate it found the particle in.
Are there other canonical examples?
Hi all, two questions. I don't have a physics background (but have a decent mathematical background, and have dabbled in QM).
* What is the difference between entanglement and coupling? Wikipedia says they're "almost" the same thing, except for the distance at which they occur. Mathematically, I guess they're the same (i.e., represented by a non-separable joint state)?
* What are various possible causes of entanglement? Examples that come to mind:
1) Pair production -- byproduct of conservation laws.
2) Entanglement with measurement apparatus -- intuitively, that the device (if it's accurate) must indicate the result corresponding to the eigenstate it found the particle in.
Are there other canonical examples?