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Volumn 79, Issue 23, 2009, Pages

Two-loop functional renormalization group approach to the one- and two-dimensional Hubbard model

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EID: 67650032961     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.235119     Document Type: Article
Times cited : (39)

References (45)
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    • Above the antiferromagnetic instability (for smaller μ), the behavior of the Z factors is similar to that observed for the nested Fermi surface case: at sufficiently low temperatures close to the temperature of vertex divergence they are suppressed down to small values and the approximation of Eq. 14 breaks down.
    • Above the antiferromagnetic instability (for smaller μ), the behavior of the Z factors is similar to that observed for the nested Fermi surface case: at sufficiently low temperatures close to the temperature of vertex divergence they are suppressed down to small values and the approximation of Eq. 14 breaks down.


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