triqs.lattice.tight_binding.TBLattice
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class
triqs.lattice.tight_binding.TBLattice(units, hoppings={}, orbital_positions=[(0, 0, 0)], orbital_names=None, hopping=None)[source] Class describing a tight binding hamiltonian on top of a bravais lattice. Has objects of type BravaisLattice, BrillouinZone and TightBinding as attributes, and exposes part of their interfaces.
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bl The associated Bravais Lattice
Type: BravaisLattice
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bz The associated Brillouin Zone
Type: BrillouinZone
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tb The tight-binding Hamiltonian
Type: TightBinding
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Methods
__init__(units[, hoppings, ...]) |
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dispersion(arg) |
Evaluate the dispersion relation for a momentum vector k in units of the reciprocal lattice vectors | ||
fourier(arg) |
Evaluate the fourier transform for a momentum vector k in units of the reciprocal lattice vectors | ||
get_kmesh(n_k) |
Return a mesh on the Brillouin zone with a given discretization | ||
get_rmesh(n_r) |
Return a mesh on the Bravais lattice with a given periodicity | ||
hopping(k) |
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hopping_dict() |
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lattice_to_real_coordinates(x) |
Signature : (r_t x) -> r_t Transform into real coordinates. |
Attributes
NOrbitalsInUnitCell |
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OrbitalNames |
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OrbitalPositions |
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Units |
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hoppings |
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n_orbitals |
Number of orbitals in the unit cell |
ndim |
Number of dimensions of the lattice |
orbital_names |
The list of orbital names |
orbital_positions |
The list of orbital positions |
units |
Number of dimensions of the lattice |