Efimov physics from the functional renormalization group
Few-body physics related to the Efimov effect is discussed using the functional renormalization group method. After a short review of renormalization in its modern formulation we apply this formalism to the description of scattering and bound states in few-body systems of identical bosons and distin...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
19 April 2011
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| In: |
Few-body systems
Year: 2011, Jahrgang: 51, Heft: 2/4, Pages: 153-180 |
| ISSN: | 1432-5411 |
| DOI: | 10.1007/s00601-011-0231-z |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s00601-011-0231-z
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| Verfasserangaben: | Stefan Floerchinger, Sergej Moroz, Richard Schmidt |
| Zusammenfassung: | Few-body physics related to the Efimov effect is discussed using the functional renormalization group method. After a short review of renormalization in its modern formulation we apply this formalism to the description of scattering and bound states in few-body systems of identical bosons and distinguishable fermions with two and three components. The Efimov effect leads to a limit cycle in the renormalization group flow. Recently measured three-body loss rates in an ultracold Fermi gas of 6Li atoms are explained within this framework. We also discuss briefly the relation to the many-body physics of the BCS-BEC crossover for two-component fermions and the formation of a trion phase for the case of three species. |
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| Beschreibung: | Special issue: Efimov Physics Gesehen am 23.01.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 1432-5411 |
| DOI: | 10.1007/s00601-011-0231-z |