Domain wall (string theory)
String theory |
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Fundamental objects |
Perturbative theory |
Non-perturbative results |
Phenomenology |
Mathematics |
In string theory, a domain wall is a theoretical (d−1)-dimensional singularity. A domain wall is meant to represent an object of codimension one embedded into space (a defect in space localized in one spatial dimension). For example, D8-branes are domain walls in type II string theory. In M-theory, the existence of Horava–Witten domain walls, "ends of the world" that carry an E8 gauge theory, is important for various relations between superstring theory and M-theory.
If domain walls exist, their interactions are hypothesized to emit gravitational waves that would be detectable by LIGO and similar experiments. [1]
See also[]
- Topological defect
- Cosmic string
- Membrane (M-theory)
- Gravitational singularity
References[]
Categories:
- Hypothetical astronomical objects
- Large-scale structure of the cosmos
- String theory
- Solitons
- Quantum physics stubs