Quantum entanglement occurs due to conservation laws, particularly the conservation of spin angular momentum. When two spin-1/2 particles are generated from a spin-zero system, their measured spins along any axis must be equal and opposite. Unlike classical particles, the spin of quantum particles remains indeterminate at creation, yet their measurements are perfectly correlated, illustrating the principle of quantum non-locality.
PREREQUISITESPhysicists, engineers with an interest in quantum mechanics, and anyone seeking to understand the foundational principles of quantum entanglement.
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.ebmg123 said:why quantum entanglement occurs?