High-frequency asymptotic behavior of self-energies in quantum impurity models
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 73104 |
Journal / Publication | Physical Review B - Condensed Matter and Materials Physics |
Volume | 84 |
Issue number | 7 |
Publication status | Published - 15 Aug 2011 |
Externally published | Yes |
Link(s)
Abstract
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. © 2011 American Physical Society.
Citation Format(s)
High-frequency asymptotic behavior of self-energies in quantum impurity models. / Wang, Xin; Dang, Hung The; Millis, Andrew J.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 84, No. 7, 73104, 15.08.2011.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review