The violation of Bell inequalities is often called quantum nonlocality. This term is not without controversy. It is sometimes argued that using the term nonlocality carries the unwarranted implication that the violation of Bell inequalities must be explained by physical, faster-than-light signals. In other words, the failure of local hidden-variable models to reproduce quantum mechanics is not necessarily a sign of true nonlocality in quantum mechanics itself. Despite these reservations, the term nonlocality has become a widespread convention.
The violation of Bell inequalities is often called quantum nonlocality This term is not without controversy It is sometimes argued that using the term nonlocality carries the unwarranted implication that the violation of Bell inequalities must be explained by physical faster-than-light signals In other words the failure of local hidden-variable models to reproduce quantum mechanics is not necessarily a sign of true nonlocality in quantum mechanics itself Despite these reservations the term nonlocality has become a widespread convention