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make input consistent with CPC paper data
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#!/usr/bin/env python | ||
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import h5py | ||
import numpy as np | ||
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# We use pytriqs package for coulomb matrix calculation | ||
import pytriqs.operators.util as U_matrix | ||
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# Coulomb matrix | ||
U = np.real(U_matrix.U_matrix(2, U_int=6.6, J_hund=0.9, basis='cubic')) | ||
# Chemical potential | ||
xmu = 44.44 | ||
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# Impurity energies | ||
Eps0 = np.array([[-0.70,-0.70], [-0.8,-0.8], [-0.50,-0.50], [-0.8,-0.8], [-0.70,-0.70] ]) | ||
# Hybridization between impurity and bath | ||
Vk = [ np.array([ [0.56434,0.56434],[0.68392,0.68392],[0.29519,0.29519]]), | ||
np.array([ [0.81892,0.81892],[0.99136,0.99136]]), | ||
np.array([ [0.77347,0.77347],[0.79785,0.79785]]), | ||
np.array([ [0.81892,0.81892],[0.99136,0.99136]]), | ||
np.array([ [0.56434,0.56434],[0.68392,0.68392],[0.29519,0.29519]]) ] | ||
# Bath energies | ||
Epsk = [ np.array([ [-2.37325, -2.37325],[-0.87328,-0.87328], [2.01265,2.01265]]), | ||
np.array([ [-3.15496,-3.15496],[-1.69066,-1.69066] ]), | ||
np.array([ [-5.59842,-5.59842],[-2.95325,-2.95325]]), | ||
np.array([ [-3.15496,-3.15496],[-1.69066,-1.69066]]), | ||
np.array([ [-2.37325, -2.37325],[-0.87328,-0.87328], [2.01265,2.01265]] ) ] | ||
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# Total number of fermionic orbitals | ||
Ns = 17 | ||
# Number of impurity orbitals | ||
ml = 5 | ||
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# Interorbital hoppings | ||
t0 = [ np.array([[0, 0]]*ml), | ||
np.array([[0, 0]]*ml), | ||
np.array([[0, 0]]*ml), | ||
np.array([[0, 0]]*ml), | ||
np.array([[0, 0]]*ml) ] | ||
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# (n_up, n_down) symmerty sectors | ||
sectors = np.array([[12,15],[15,12],[14,13],[13,14],[13,15],[14,14],[15,13],]) | ||
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# open data file | ||
data = h5py.File("input.h5", "w"); | ||
# Inverse temperature | ||
#beta = data.create_dataset("BETA", shape=(), dtype='f', data=10.0) | ||
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hop_g = data.create_group("sectors") | ||
hop_g.create_dataset("values", data=sectors) | ||
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bath = data.create_group("Bath") | ||
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for i in range(ml): | ||
if(Epsk[i].shape != Vk[i].shape): | ||
raise "Incorrect shape for Hybridisation and Epsk" | ||
Epsk_g = bath.create_group("Epsk_" + str(i)) | ||
Epsk_g.create_dataset("values", shape=(len(Epsk[i]),2,), data=Epsk[i], dtype=np.float) | ||
Vk_g = bath.create_group("Vk_" + str(i)) | ||
Vk_g.create_dataset("values", data=np.array(Vk[i]), dtype=np.float) | ||
t0_g = data.create_group("t0_" + str(i)) | ||
t0_g.create_dataset("values", data=np.array(t0[i]), dtype=np.float) | ||
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hop_g = data.create_group("Eps0") | ||
hop_g.create_dataset("values", data=Eps0) | ||
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int_g = data.create_group("interaction") | ||
int_ds = int_g.create_dataset("values", shape=(ml,ml,ml,ml,), data=U) | ||
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int_ds = data.create_dataset("mu", shape=(), data=xmu) | ||
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#!/usr/bin/env python | ||
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import h5py | ||
import numpy as np | ||
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U = np.array([6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0]) | ||
xmu = np.array([0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54, 0.54]) | ||
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t = -1.0; | ||
tp = 0.3; | ||
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sectors = np.array([[6,6]]) | ||
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Nrows = 4; | ||
Ncols = 4; | ||
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tm = np.zeros((Nrows*Ncols, Nrows*Ncols)); | ||
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for row in range(0, Nrows): | ||
for col in range(0, Ncols): | ||
i = row * Ncols + col; | ||
# Horizontal hopping with period. | ||
j = row * Ncols + (col + 1)%Ncols; | ||
tm[i, j] = -t; | ||
tm[j, i] = -t; | ||
# Vertical hopping with period. | ||
j = ((row + 1)%Nrows) * Ncols + col; | ||
tm[i, j] = -t; | ||
tm[j, i] = -t; | ||
# Diagonal (\) hopping with period. | ||
j = ((row + 1)%Nrows) * Ncols + (col + 1)%Ncols; | ||
tm[i, j] = -tp; | ||
tm[j, i] = -tp; | ||
# Diagonal (/) hopping with period. | ||
j = ((row + 1)%Nrows) * Ncols + (col - 1)%Ncols; | ||
tm[i, j] = -tp; | ||
tm[j, i] = -tp; | ||
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print "bandwidth: %f" % (np.amax(np.linalg.eig(tm)[0]) - np.amin(np.linalg.eig(tm)[0])); | ||
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Ns = len(U) | ||
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data = h5py.File("input.h5", "w"); | ||
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hop_g = data.create_group("sectors") | ||
hop_g.create_dataset("values", data=sectors) | ||
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hop_g = data.create_group("hopping") | ||
hop_g.create_dataset("values", data=tm) | ||
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int_g = data.create_group("interaction") | ||
int_ds = int_g.create_dataset("values", shape=(Ns,), data=U) | ||
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int_g = data.create_group("chemical_potential") | ||
int_ds = int_g.create_dataset("values", shape=(Ns,), data=xmu) |