High-frequency asymptotic behavior of self-energies in quantum impurity models

Details High-frequency asymptotic behavior of self-energies in quantum impurity models High-frequency asymptotic behavior of self-energies in quantum impurity models

2011-07-27

arxiv.org/abs/1107.5536v1

Phys. Rev. B 84, 073104 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

Brief report, 3 pages. For supplementary information please download and untar the source file (use the option 'other')

Scientific paper

10.1103/PhysRevB.84.073104

We present explicit expressions for the high-frequency asymptotic behavior of electron self-energy of general quantum impurity models, which may be useful for improving the convergence of dynamical mean-field calculations and for the analytic continuation of the electron self-energy. We also give results, expressed in more physical terms, for the two-orbital and three-orbital rotationally invariant Slater-Kanamori interactions, in order to facilitate calculations of transition metal oxides.

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