Editing Quantum field theory (section)

{{Short description|Theoretical framework}}
{{Quantum field theory}}

In [[theoretical physics]], '''quantum field theory''' ('''QFT''') is a theoretical framework that combines [[Field theory (physics)|field theory]] and the [[principle of relativity]] with ideas behind [[quantum mechanics]].<ref name="peskin">{{cite book |last1=Peskin |first1=M. |author-link=Michael Peskin |last2=Schroeder |first2=D.
 |year=1995
 |title=An Introduction to Quantum Field Theory
 |url=https://books.google.com/books?id=i35LALN0GosC
 |publisher=Westview Press
 |isbn=978-0-201-50397-5 }}</ref>{{rp|xi}} QFT is used in [[particle physics]] to construct [[physical model]]s of [[subatomic particle]]s and in [[condensed matter physics]] to construct models of [[quasiparticle]]s. The current [[standard model of particle physics]] is based on QFT.