Entanglement is a phenomenon in quantum mechanics where two or more particles become correlated in such a way that the state of one particle cannot be described independently of the state of the other particle(s). When particles are entangled, their properties become interconnected, even if they are physically separated.
The concept of entanglement does not imply that one particle can be directly manipulated or moved without affecting the other. Any change or manipulation performed on one entangled particle will have consequences on the other particle, regardless of the distance between them. This property is known as "entanglement correlation" or "non-locality."
However, it is possible to perform operations on one particle that effectively manipulate its entangled partner, even though the direct manipulation is not applied to the partner particle itself. This is because the entanglement correlation means that any change in one particle's state will have an immediate effect on the state of the other particle, regardless of the spatial separation.
For example, consider a pair of entangled particles, commonly referred to as qubits, that have spin as their quantum property. If one particle's spin is measured or manipulated, it will instantaneously affect the spin of the other particle, no matter how far apart they are. This effect has been experimentally observed and is often referred to as "quantum non-locality."
It's important to note that entanglement cannot be used to send information or communicate faster than the speed of light. While the entangled particles are correlated, they do not allow for faster-than-light communication or violate causality. The entanglement correlation is probabilistic and cannot be used to transmit information instantaneously.
In summary, when two particles are entangled, any manipulation or measurement performed on one particle will affect the other particle's state. However, this does not imply that one particle can be directly moved or manipulated without affecting the other. The entangled particles remain correlated, and changes in one particle's state are immediately reflected in the state of the other particle, regardless of the spatial separation between them.