gftool.lattice.kagome¶
2D Kagome lattice.
The DOS is finite in the interval \([-2D/3, 4D/3]\), where \(D\) is the half-bandwidth.
The kagome lattice can be decomposed into triangular and a
dispersionless flat band. The dispersive part looks like the
honeycomb lattice.
| half_bandwidth: | The half-bandwidth D corresponds to a nearest neighbor hopping of t=2D/3 |
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API¶
Functions
dos(eps, half_bandwidth) |
DOS of non-interacting 2D kagome lattice. |
dos_moment(m, half_bandwidth) |
Calculate the m th moment of the kagome DOS. |
dos_mp(eps[, half_bandwidth]) |
Multi-precision DOS of non-interacting 2D kagome lattice. |
gf_z(z, half_bandwidth) |
Local Green’s function of the 2D kagome lattice. |
hilbert_transform(xi, half_bandwidth) |
Hilbert transform of non-interacting DOS of the kagome lattice. |