Physicists create bizarre quantum ‘domain walls’ in new experiment

Scientists can now reliably create a strange quantum object called a domain wall. The discovery could lead to new quantum technology and to a better understanding of quantum particles in general.

Domain walls form when groups of atoms at very low temperatures segregate into different clumps, or “domains.” Between those domains forms a “wall” that behaves so differently from the atoms themselves that scientists consider it an independent quantum object.