Few-body hierarchy in non-relativistic functional renormalization group equations and a decoupling theorem

For non-relativistic quantum field theory in the few-body limit with instantaneous interactions it is shown within the functional renormalization group formalism that propagators are not renormalized and that the renormalization group equations of one-particle irreducible vertex functions are govern...

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1. Verfasser: Flörchinger, Stefan (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 18 April 2014
In: Nuclear physics. A, Nuclear and hadronic physics
Year: 2014, Jahrgang: 927, Pages: 119-133
ISSN:1873-1554
DOI:10.1016/j.nuclphysa.2014.04.013
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1016/j.nuclphysa.2014.04.013
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0375947414000955
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Verfasserangaben:Stefan Floerchinger
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Zusammenfassung:For non-relativistic quantum field theory in the few-body limit with instantaneous interactions it is shown within the functional renormalization group formalism that propagators are not renormalized and that the renormalization group equations of one-particle irreducible vertex functions are governed by a hierarchical structure. This hierarchy allows to solve the equations in the n-body sector without knowledge or assumptions about the m-body sectors where m>n.
Beschreibung:Gesehen am 27.11.2017
Beschreibung:Online Resource
ISSN:1873-1554
DOI:10.1016/j.nuclphysa.2014.04.013