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The sum rule for the angular overlap model e-parameters

โœ Scribed by R.G. Woolley


Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
477 KB
Volume
118
Category
Article
ISSN
0009-2614

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The Moment Sum Rule and Its Consequences
โœ M. Potthoff; T. Herrmann; T. Wegner; W. Nolting ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 430 KB ๐Ÿ‘ 2 views

The sum rule for the moments of the spectral density is discussed for the single-band Hubbard model. It is shown that respecting the sum rule up to the order m 3 is conceptually important for a qualitatively correct description of the quasi-particle band structure in the strong-correlation regime. D