# Hubbard–Stratonovich transformation

> transformation that converts a particle theory into its respective field theory by linearizing the density operator in the many-body interaction term and introducing an auxiliary scalar field

**Wikidata**: [Q17027759](https://www.wikidata.org/wiki/Q17027759)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hubbard–Stratonovich_transformation)  
**Source**: https://4ort.xyz/entity/hubbard-stratonovich-transformation