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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| Main Author: | |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
18 April 2014
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| In: |
Nuclear physics. A, Nuclear and hadronic physics
Year: 2014, Volume: 927, Pages: 119-133 |
| ISSN: | 1873-1554 |
| DOI: | 10.1016/j.nuclphysa.2014.04.013 |
| Online Access: | 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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| Author Notes: | Stefan Floerchinger |
| Summary: | 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. |
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| Item Description: | Gesehen am 27.11.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1873-1554 |
| DOI: | 10.1016/j.nuclphysa.2014.04.013 |