# spontaneous symmetry breaking

> physical phenomenon in which the vacuum expectation value of a field is not invariant under a symmetry of the action, so that a symmetry present at high temperatures is broken at low temperatures

**Wikidata**: [Q736716](https://www.wikidata.org/wiki/Q736716)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spontaneous_symmetry_breaking)  
**Source**: https://4ort.xyz/entity/spontaneous-symmetry-breaking


## References

1. Freebase Data Dumps. 2013
2. Quora
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)