Domain Wall

A domain wall is a type of topological soliton that occurs whenever a discrete symmetry is spontaneously broken. It can take on different meanings depending on the context:

  • Domain wall (magnetism), an interface separating magnetic domains
  • Domain wall (optics), for domain walls in optics
  • Domain wall (string theory), a theoretical 2-dimensional singularity

Famous quotes containing the words domain and/or wall:

    “The vice named surrealism is the immoderate and impassioned use of the stupefacient image or rather of the uncontrolled provocation of the image for its own sake and for the element of unpredictable perturbation and of metamorphosis which it introduces into the domain of representation; for each image on each occasion forces you to revise the entire Universe.”
    —Louis Aragon (1897–1982)

    “When a wall is collapsing, everybody gives it a push.”
    —Chinese proverb.