Entangled states are a fundamental concept in quantum physics, describing a situation where two or more particles become interconnected in such a way that the state of one particle cannot be described independently of the state of the others, no matter the distance between them. These particles, even if separated by vast distances, exhibit correlated properties. When the state of one particle is measured or altered, it instantaneously affects the state of the other particle, regardless of the distance separating them. This phenomenon, famously described as “spooky action at a distance” by Einstein, is a key aspect of quantum entanglement and plays a crucial role in quantum computing, cryptography, and understanding the foundations of quantum mechanics.