19 lines
1.0 KiB
Python
19 lines
1.0 KiB
Python
import guan
|
|
import numpy as np
|
|
from math import *
|
|
import functools
|
|
|
|
x = np.linspace(-pi, pi, 100)
|
|
y = np.linspace(-pi, pi, 100)
|
|
|
|
hamiltonian_function = functools.partial(guan.one_dimensional_fourier_transform, unit_cell=0, hopping=1)
|
|
eigenvalue_array = guan.calculate_eigenvalue_with_one_parameter(x, hamiltonian_function)
|
|
guan.plot(x, eigenvalue_array, xlabel='k', ylabel='E', type='-o')
|
|
|
|
hamiltonian_function = functools.partial(guan.two_dimensional_fourier_transform_for_square_lattice, unit_cell=0, hopping_1=1, hopping_2=1)
|
|
eigenvalue_array = guan.calculate_eigenvalue_with_two_parameters(x, y, hamiltonian_function)
|
|
guan.plot_3d_surface(x, y, eigenvalue_array, xlabel='kx', ylabel='ky', zlabel='E')
|
|
|
|
hamiltonian_function = functools.partial(guan.three_dimensional_fourier_transform_for_cubic_lattice, k3=0, unit_cell=0, hopping_1=1, hopping_2=1, hopping_3=1)
|
|
eigenvalue_array = guan.calculate_eigenvalue_with_two_parameters(x, y, hamiltonian_function)
|
|
guan.plot_3d_surface(x, y, eigenvalue_array, xlabel='kx', ylabel='ky', zlabel='E') |