Magnetic monopole
hypothetical particle with one magnetic pole / From Wikipedia, the free encyclopedia
A magnetic monopole is a hypothetical particle in particle physics that is a magnet with only one magnetic pole (a north pole without a south pole or the other way around).[1][2] Scientists are interested in this, as they are predicted in several particle theories, such as grand unified and superstring.[3][4] Magnetism in normal bar magnets and electromagnets does not come from magnetic monopoles. There is not enough evidence to even be sure that magnetic monopoles exist in this universe.