Understanding Quantum Entanglement

Quantum entanglement describes the unique correlations between parts of a quantum system, which differ from classical correlations. When two qubits are entangled, measuring one qubit automatically correlates with the state of the other, but this does not enable faster-than-light communication as each observation still yields random results until compared. This intriguing behavior led Einstein to describe it as 'spooky action at a distance', highlighting the randomness inherent in quantum measurements. While entanglement is crucial for quantum teleportation, it does not allow for any direct information transfer without conventional communication methods.