Multi-band D-TRILEX approach to materials with strong electronic correlations
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation. This method is designed for a self-consistent description of multi-orbital systems that can also have several atoms in the unit cell. T...
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| Format: | Article |
| Language: | English |
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SciPost
2022-08-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.13.2.036 |
| Summary: | We present the multi-band dual triply irreducible local expansion (D-TRILEX)
approach to interacting electronic systems and discuss its numerical
implementation. This method is designed for a self-consistent description of
multi-orbital systems that can also have several atoms in the unit cell. The
current implementation of the D-TRILEX approach is able to account for the
frequency- and channel-dependent long-ranged electronic interactions. We show
that our method is accurate when applied to small multi-band systems such as
the Hubbard-Kanamori dimer. Calculations for the extended Hubbard, the
two-orbital Hubbard-Kanamori, and the bilayer Hubbard models are also
discussed. |
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| ISSN: | 2542-4653 |