Wondering why quantum entanglement occurs

In summary, the conversation discusses the reason for quantum entanglement and how it is related to conservation laws, specifically the conservation of spin angular momentum. It is noted that while classical particles also exhibit similar behavior, quantum particles have a non-local connection that is not determined at creation. This is a source of much interest and discussion in the field of physics.
  • #1
ebmg123
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hi there
I am an engineer but have a huge interest in physics and wanted to ask anyone who has any knowledge of why quantum entanglement occurs?
 
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  • #2
ebmg123 said:
why quantum entanglement occurs?
The conservation laws is one reason. E.g. conservation of spin angular momentum. If two spin 1/2 particles are created from a spin zero system, and you measure the spin of them both about some axis, then the measured spins must be equal and opposite.

Note that the same is true for classical particles. The difference is that in QM the particles spin is not determined at creation yet the measurements are perfectly correlated. This is often known as quantum non-locality. That's what all the fuss is about!
 
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  • #3
thnx a bunch that makes allot more sense
 

1. What is quantum entanglement?

Quantum entanglement is a phenomenon in quantum physics where two or more particles become connected in such a way that the state of one particle is dependent on the state of the other, regardless of the distance between them.

2. How does quantum entanglement occur?

Quantum entanglement occurs when two particles interact in a way that their properties become dependent on each other. This can happen through processes such as spontaneous emission, or when two particles are created at the same time and location.

3. Why is quantum entanglement important?

Quantum entanglement is important because it allows for instantaneous communication between particles, regardless of the distance between them. This has implications for quantum computing, cryptography, and teleportation.

4. Can quantum entanglement be observed in everyday life?

No, quantum entanglement is a phenomenon that can only be observed at the quantum level. While it has been demonstrated in laboratory experiments, it is not something that can be observed in our everyday lives.

5. How does quantum entanglement challenge our understanding of reality?

Quantum entanglement challenges our understanding of reality because it goes against our classical understanding of cause and effect. It suggests that particles can be connected in ways that are not explained by traditional laws of physics, and that there may be underlying principles at play that we do not yet fully understand.

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