Necessary and sufficient conditions for the validity of Luttinger's theorem

Luttinger's theorem is a major result in many-body physics that states the volume of the Fermi surface is directly proportional to the particle density. In its 'hard' form, Luttinger's theorem implies that the Fermi volume is invariant with respect to interactions (as opposed to...

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Veröffentlicht in:	New journal of physics 2020-06, Vol.22 (6), p.63011
Hauptverfasser:	Heath, Joshuah T, Bedell, Kevin S
Format:	Artikel
Sprache:	eng
Schlagworte:	anomalies cuprates Existence theorems Fermi surfaces index theorem Kadanoff-Baym Landau-Fermi liquids Luttinger's theorem Particle density (concentration) Physics Robustness (mathematics) self-energy Validity
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