Entanglement in Quantum Mechanics : Interpretation of Historical Aspect and its Implification

Quantum entanglement occurs when a pair or group of particles is generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the pair or group cannot be described independently of the state of the others, including when the particles are separated by a large distance. This leads to correlations between observable physical properties of the systems. The topic of quantum entanglement is at the heart of the disparity between classical and quantum physics. Entanglement is a primary feature of quantum mechanics lacking in classical mechanics. Measurements of physical properties such as position, momentum, spin, and polarization performed on entangled particles can, in some cases, be found to be perfectly correlated. If a pair of entangled particles is generated such that their total spin is zero, and one particle is found to have clockwise spin on a first axis, then the spin of the other particle, measured on the same axis, will be found to be counter clockwise. This behavior gives rise to paradoxical effects. Any measurement of a property of a particle results in an irreversible wave function collapse of that particle and will change the original quantum state and such a measurement will affect the entangled system as a whole.