# Kaluza–Klein theory

> field theory on a spacetime with small, compact extra dimensions beyond the large observed dimensions

**Wikidata**: [Q944095](https://www.wikidata.org/wiki/Q944095)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kaluza–Klein_theory)  
**Source**: https://4ort.xyz/entity/kaluza-klein-theory


## References

1. On the unification problem in physics
2. Quantum theory and five-dimensional relativity theory
3. Integrated Authority File
4. Freebase Data Dumps. 2013
5. YSO-Wikidata mapping project
6. National Library of Israel
7. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)