Quantum entanglement, also called quantum correlation, is a strange and not well understood physical phenomenon. This phenomenon leads to the association of two or more objects with each other regardless of the distance that separates them, so that both related objects have similar properties, this state is called the quantum state. By observing one of the two entangled particles, we will know for sure the state of the other entangled particle, no matter how far apart they are. If the state of one particle changes, the state of the other entangled particle will change instantly, even if the distance between the two particles is very large. Read also: What is the difference between quantum mechanics and classical physics? How was quantum entanglement discovered? In the first decades of the last century, scientists began to study what is known as quantum physics, the science that is used to study subatomic particles, that is, the smallest particles of atoms. The term quantum state was first used. in a research paper published in 1935, when Albert Einstein, Boris Podolsky and Nathan Rosen talked about the strength of interconnected quantum states and discovered that when two small quantum particles are connected, they lose their quantum states and share a single quantum state known as entanglement . This condition is not affected by the distance between
