Low-energy effective theory at a quantum critical point of the two-dimensional Hubbard model: mean-field analysis
We complement previous functional renormalization group (fRG) studies of the two-dimensional Hubbard model by mean-field calculations. The focus falls on Van Hove filling and the hopping amplitude t′/t=0.341. The fRG data suggest a quantum critical point (QCP) in this region and in its vicinity a si...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
13 December 2018
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| In: |
Physical review
Year: 2018, Jahrgang: 98, Heft: 23 |
| ISSN: | 2469-9969 |
| DOI: | 10.1103/PhysRevB.98.235131 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevB.98.235131 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.98.235131 
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| Verfasserangaben: | Kambis Veschgini and Manfred Salmhofer |
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Low-energy effective theory at a quantum critical point of the two-dimensional Hubbard model: mean-field analysis
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