repo stringlengths 2 99 | file stringlengths 13 225 | code stringlengths 0 18.3M | file_length int64 0 18.3M | avg_line_length float64 0 1.36M | max_line_length int64 0 4.26M | extension_type stringclasses 1
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dmrgpy | dmrgpy-master/examples/fermionic_energy/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 6
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = 0
for i in range(n-1):
h = h + fc.C[i]*fc.Cdag[i+1]
h = h... | 542 | 17.724138 | 66 | py |
dmrgpy | dmrgpy-master/examples/highly_excited/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 4
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
for i in range(n-1):
h = ... | 646 | 21.310345 | 66 | py |
dmrgpy | dmrgpy-master/examples/site_superconducting/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 1 # number of spinful fermionic sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = fc.Cup[0]*fc.Cdn[0]
h = h + h.get_dagger()
fc.set... | 1,033 | 24.219512 | 70 | py |
dmrgpy | dmrgpy-master/examples/heisenberg_12_correlator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 100
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
for i in range(n-1):
h ... | 564 | 18.482759 | 66 | py |
dmrgpy | dmrgpy-master/examples/majorana_chain/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 2
fc = fermionchain.Majorana_Chain(n) # create the chain
for i in range(n):
for j in range(n):
h = fc.G[i]*fc.G[j]*n... | 607 | 16.371429 | 66 | py |
dmrgpy | dmrgpy-master/examples/scaling_time_evolution/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import spinchain
import time
ns = np.array(range(4,30,2))
es = []
n = 4
def compute(n):
spins = [2 for i in range(n)]
sc = spinchain.Spin_Chain(spins) # create the chain
sc.clean()
sc... | 1,167 | 20.62963 | 67 | py |
dmrgpy | dmrgpy-master/examples/correlation_matrix_spinless/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 60 # number of fermionic sites
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = 0
U = -0.95
for i in range(n-1): # hopping
h = h + fc.Cdag[i... | 829 | 19.75 | 66 | py |
dmrgpy | dmrgpy-master/examples/chain_correlation/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
ns = np.array(range(4,10,2))
es = []
n = 10
spins = [2 for i in range(n)]
sc = spinchain.Spin_Chain(spins) # create the chain
h = 0
for i in range(n-1):
h = ... | 868 | 23.138889 | 76 | py |
dmrgpy | dmrgpy-master/examples/spinless_fermions/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 2
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = fc.C[0]*fc.C[1]
h = h + h.get_dagger()
fc.set_hamiltonian(h)... | 528 | 16.633333 | 66 | py |
dmrgpy | dmrgpy-master/examples/dimer_site/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 2 # number of spinful fermionic sites
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = fc.N[0] + fc.N[1]
fc.set_hamiltonian(h)
#################... | 955 | 23.512821 | 70 | py |
dmrgpy | dmrgpy-master/examples/density_matrix/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 6
fc = fermionchain.Fermionic_Chain(n) # create the chain
def get(U):
h = 0
for i in range(n-1):
h = h + ... | 765 | 15.297872 | 66 | py |
dmrgpy | dmrgpy-master/examples/fermionic_charge_response/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 6
fc = fermionchain.Fermionic_Chain(n) # create the chain
m = np.random.random((n,n)) + 1j*np.random.random((n,n))
m = m +... | 1,556 | 20.328767 | 76 | py |
dmrgpy | dmrgpy-master/examples/algebra/multiply_operators/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6 # number of sites in the spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin ch... | 1,474 | 30.382979 | 77 | py |
dmrgpy | dmrgpy-master/examples/algebra/eigenvalue_degeneracy/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 2
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0 # generate a Heisenberg Ha... | 810 | 21.527778 | 86 | py |
dmrgpy | dmrgpy-master/examples/algebra/trace/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0 # generate a Heisenberg Ha... | 669 | 19.30303 | 69 | py |
dmrgpy | dmrgpy-master/examples/parallel/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
def get(u):
n = 16
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0... | 755 | 20.6 | 67 | py |
dmrgpy | dmrgpy-master/examples/total_spin/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np # conventional numpy library
import matplotlib.pyplot as plt # library to plot the results
from dmrgpy import spinchain
ns = 6 # number of sites in the spin chain
spins = ["S=1" for i in ran... | 927 | 22.794872 | 68 | py |
dmrgpy | dmrgpy-master/examples/hubbard_gap/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
ns = 10 # number of spinful fermionic sites
def get_fc(U):
n = ns*2
fc = fermionchain.Fermionic_Chain(n) # create the chain
C = fc.C
Cdag = fc.... | 960 | 18.612245 | 66 | py |
dmrgpy | dmrgpy-master/examples/hubbard_gap/plot.py | import numpy as np
import matplotlib.pyplot as plt
m = np.genfromtxt("D_VS_MU.OUT").transpose()
x,y = m[0],m[1]
from scipy.interpolate import interp1d
from scipy.signal import savgol_filter
xs = np.linspace(np.min(x),np.max(x),len(x)*10)
ys = interp1d(x,y,fill_value=0.0,bounds_error=False)(xs)
#ys = savgol_filter(y... | 428 | 21.578947 | 56 | py |
dmrgpy | dmrgpy-master/examples/heisenberg_VS_spinfermion/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
from dmrgpy import spinfermionchain
n = 7
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
def geth(sc):
h = 0
for i in range(n-1):
h = h + sc... | 769 | 19.810811 | 69 | py |
dmrgpy | dmrgpy-master/examples/magnetization_distribution_maxent/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 20 # number of sites in your chain
spins = ["S=1" for i in range(n)] # create the sites
sc = spinchain.Spin_Chain(spins) # create the chain
#sc.itensor_versi... | 1,777 | 27.222222 | 81 | py |
dmrgpy | dmrgpy-master/examples/transverse_2d_ising_model/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.environ["DMRGROOT"])
import os ; import sys ; sys.path.append(os.environ["PYQULAROOT"])
import numpy as np
from dmrgpy import spinchain
from pyqula import geometry
def get(n=2,bx=0.):
g = geometry.single_square_lattice()
m ... | 1,079 | 24.116279 | 83 | py |
dmrgpy | dmrgpy-master/examples/IsingDM/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import simplechains
# This example shows the quantum phase transition in the transverse Ising model
# generate a 1D Ising chain
def get_dm(bx):
"""
Compute the distance be... | 1,297 | 27.844444 | 79 | py |
dmrgpy | dmrgpy-master/examples/multiply_mpo_operator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 6 # number of sites in the spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain... | 1,254 | 28.880952 | 77 | py |
dmrgpy | dmrgpy-master/examples/bilinear_biquadratic/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np # conventional numpy library
import matplotlib.pyplot as plt # library to plot the results
from dmrgpy import spinchain
ns = 6 # number of sites in the spin chain
spins = [3 for i in range(n... | 824 | 25.612903 | 69 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_chain/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain
n = 4
fc = fermionchain.Fermionic_Chain(n) # create the fermion chain
mh = np.zeros((n,n),dtype=np.complex) # TB matrix
for i in range(n-1):
mh[i,i+1] =... | 817 | 22.371429 | 69 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_degeneracy/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
def get(delta):
n = 4
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
... | 847 | 24.69697 | 69 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/skin_effect/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain
def get(gamma):
n = 8
fc = fermionchain.Fermionic_Chain(n) # create the fermion chain
mh = np.zeros((n,n),dtype=np.complex) # TB matrix
# gam... | 969 | 21.55814 | 69 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_edge_modes/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain,mpsalgebra
import numpy as np
# this is a minimal example of an interacting non-Hermitian system
# with edge zero modes
def get(V=0.0,c=1.0):
"""Retur... | 1,871 | 23.96 | 90 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_correlator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain
n = 2 # number of unit cells
ns = 4*n # total number of sites
# create the tight binding matrix
mh = np.zeros((ns,ns),dtype=np.complex) # TB matrix
for i ... | 2,223 | 23.988764 | 79 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_ground_state/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 4
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
for i in range(n-1):
h... | 1,117 | 26.268293 | 74 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_energies/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
for i in range(n-1):
h... | 699 | 22.333333 | 69 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/iterations_GS/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 12
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
for i in range(n-1):
... | 1,160 | 30.378378 | 75 | py |
dmrgpy | dmrgpy-master/examples/non_hermitian/non_hermitian_fermionic_energies/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain
n = 6
fc = fermionchain.Fermionic_Chain(n) # create the spin chain
h = 0
for i in range(n-1):
h = h +fc.Cdag[i]*fc.C[i+1]
h = h + h.get_dagger()
for i... | 615 | 20.241379 | 69 | py |
dmrgpy | dmrgpy-master/examples/kondo/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
def get(JK):
n = 10 # number of spinful fermionic sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = 0
mu = 0.
for ... | 1,388 | 28.553191 | 67 | py |
dmrgpy | dmrgpy-master/examples/convergence_excited_states/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
import time
n = 6 # take n different sites
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chai... | 864 | 23.027778 | 75 | py |
dmrgpy | dmrgpy-master/examples/parafermion_energy/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import parafermionchain
n = 4
pc = parafermionchain.Parafermionic_Chain(n) # create the chain
h = 0
for i in range(n):
for j in range(n):
... | 760 | 22.060606 | 66 | py |
dmrgpy | dmrgpy-master/examples/Haldane_chain/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
# you may need to uncomment next line to add the library
from dmrgpy import simplechains # basic library for spin chains
s = 1 # spin in the chain
n = 10 # length of the chain
ssc = simplechains.SSC(s=s,n=n) # ... | 906 | 28.258065 | 76 | py |
dmrgpy | dmrgpy-master/examples/bosonic_chain/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import bosonchain
n = 4
bc = bosonchain.Bosonic_Chain(n) # create the bosonic chain
h = 0
t = 1.0 # hopping
U = 1.0 # Hubbard
mu = 0.0 # chemical potential
for i in range(n-1): h... | 1,016 | 26.486486 | 78 | py |
dmrgpy | dmrgpy-master/examples/bosonic_hubbard/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import bosonchain
from dmrgpy import multioperator
n = 3
bc = bosonchain.Bosonic_Hamiltonian(n) # create the chain
h = 0 # initialize
for i in ran... | 749 | 21.058824 | 76 | py |
dmrgpy | dmrgpy-master/examples/effective_hamiltonian_correlator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
e = sc.gs_energy() # compute the ground s... | 597 | 18.290323 | 66 | py |
dmrgpy | dmrgpy-master/examples/MPS_VS_ED/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
for i in range(5):
# spins = [np.random.randint(2,6) for i in range(n)] # spin 1/2 heisenberg chain
spins = [np.random.randint(2,5) for i in range(n)] # ... | 1,058 | 24.829268 | 81 | py |
dmrgpy | dmrgpy-master/examples/mutual_information/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 4
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# This example shows how compute the mutual information
# (2,3) of a spin chain with 4 site... | 1,184 | 23.183673 | 67 | py |
dmrgpy | dmrgpy-master/examples/haldane_chain_correlation/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
ns = np.array(range(4,30,2))
es = []
n = 30
spins = [3 for i in range(n)] # spin 1 chain
sc = spinchain.Spin_Chain(spins) # create the chain
pairs = [(i,i+1) for ... | 719 | 23 | 70 | py |
dmrgpy | dmrgpy-master/examples/multioperator_vev/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np # conventional numpy library
from dmrgpy import spinchain # library dealing with DMRG for spin chains
import matplotlib.pyplot as plt # library to plot the results
n = 10 # total number of s... | 875 | 25.545455 | 76 | py |
dmrgpy | dmrgpy-master/examples/finite_temperature_ground_state/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np # conventional numpy library
from dmrgpy import spinchain # library dealing with DMRG for spin chains
from dmrgpy import thermal # library dealing with DMRG for spin chains
import matplotlib.... | 1,039 | 26.368421 | 72 | py |
dmrgpy | dmrgpy-master/examples/staticVSdefault_operator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 60 # number of sites in your chain
spins = ["S=1/2" for i in range(n)] # create the sites
sc = spinchain.Spin_Chain(spins) # create the chain
wf0 = sc.rando... | 812 | 24.40625 | 66 | py |
dmrgpy | dmrgpy-master/examples/hubbard_site/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 1 # number of spinful fermionic sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = (fc.Nup[0]-.5)*(fc.Ndn[0]-.5) # interaction
h = h... | 1,036 | 24.925 | 70 | py |
dmrgpy | dmrgpy-master/examples/multiply_exponentials/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 6 # number of sites in your chain
spins = ["S=1/2" for i in range(n)] # create the sites
sc = spinchain.Spin_Chain(spins) # create the chain
#sc.itensor_vers... | 696 | 20.78125 | 78 | py |
dmrgpy | dmrgpy-master/examples/sum_mps/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 10 # number of sites in your chain
spins = ["S=1/2" for i in range(n)] # create the sites
sc = spinchain.Spin_Chain(spins) # create the chain
hfe = sum(sc.S... | 989 | 24.384615 | 70 | py |
dmrgpy | dmrgpy-master/examples/anisotropic_heisenberg_S1/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 200
spins = ["S=1/2"]+["S=1" for i in range(n)]+["S=1/2"] # spin 1/2 heisenberg chain
def get(D):
sc = spinchain.Spin_Chain(spins) # create the spin chai... | 992 | 20.586957 | 81 | py |
dmrgpy | dmrgpy-master/examples/magnetization_VS_field/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 10 # number of sites in your chain
spins = ["S=1/2" for i in range(n)] # create the sites
sc = spinchain.Spin_Chain(spins) # create the chain
# now define t... | 937 | 20.318182 | 66 | py |
dmrgpy | dmrgpy-master/examples/UV_chain/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 4 # number of spinful fermionic sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = 0
for i in range(n-1): # hopping
h = h + fc.C... | 768 | 31.041667 | 66 | py |
dmrgpy | dmrgpy-master/examples/full_hamiltonian/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 2
spins = ["S=1/2" for i in range(n)]
sc = spinchain.Spin_Chain(spins) # create the chain
h = 0 # initialize Hamiltonian
for i in range(n-1):
h = h + sc.S... | 582 | 18.433333 | 66 | py |
dmrgpy | dmrgpy-master/examples/SYK_chain/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 4
L = 3
fc = fermionchain.Fermionic_Chain(n*L) # create the chain
h = 0
#for i in range(n):
# for j in range(i):
# h = ... | 1,749 | 21.151899 | 75 | py |
dmrgpy | dmrgpy-master/examples/energy_fluctuation/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np # conventional numpy library
import matplotlib.pyplot as plt # library to plot the results
from dmrgpy import spinchain
spins = ["S=1" for i in range(10)] # 2*S+1=2 for S=1/2
sc = spinchain.... | 823 | 22.542857 | 66 | py |
dmrgpy | dmrgpy-master/examples/local_magnetization/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
import matplotlib.pyplot as plt
####################################
### Create the spin chain object ###
####################################
n = 6 # total numbe... | 1,696 | 27.762712 | 80 | py |
dmrgpy | dmrgpy-master/examples/time_evolution/time_evolution_quench/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6 # number of sites in the chain
spins = [2 for i in range(n)] # S=1/2
sc = spinchain.Spin_Chain(spins) # create the chain
# create two Hamiltonians
h0 = ... | 1,166 | 22.34 | 76 | py |
dmrgpy | dmrgpy-master/examples/time_evolution/time_evolution_wavefunction/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 2 # number of sites in the chain
spins = ["S=1/2" for i in range(n)] # S=1/2
sc = spinchain.Spin_Chain(spins) # create the chain
# first Hamiltonian, to c... | 1,237 | 21.509091 | 77 | py |
dmrgpy | dmrgpy-master/examples/time_evolution/time_evolution_fermions/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain
ns = np.array(range(4,30,2))
es = []
n = 8
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = 0
for i in range(n-1): h = h +fc.Cdag[i]*fc.C[i+1]
... | 1,044 | 19.9 | 73 | py |
dmrgpy | dmrgpy-master/examples/time_evolution/time_evolution_ABA/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 3 # number of sites in the chain
spins = [2 for i in range(n)] # S=1/2
sc = spinchain.Spin_Chain(spins) # create the chain
###############################... | 1,725 | 26.83871 | 76 | py |
dmrgpy | dmrgpy-master/examples/julia_VS_cpp_dynamical_correlator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
def get(n):
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
for i in range(... | 1,168 | 18.813559 | 66 | py |
dmrgpy | dmrgpy-master/examples/correlation_matrix/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 20 # number of spinful fermionic sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = 0
U = 2.0
for i in range(n-1): # hopping
h =... | 1,000 | 20.297872 | 66 | py |
dmrgpy | dmrgpy-master/examples/heisenberg_square/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 4
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h1,h2 = 0,0
h1 = sc.SS(0,1) + sc.S... | 637 | 18.333333 | 66 | py |
dmrgpy | dmrgpy-master/examples/dimer/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 2
spins = ["S=1" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0
h = h +sc.Sx[0]*sc.Sx[1]
h = h ... | 549 | 16.1875 | 66 | py |
dmrgpy | dmrgpy-master/examples/GS_enforce_maximum_fluctuation/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
from dmrgpy import fermionchain
n = 20
spins = ["S=1" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = ... | 562 | 18.413793 | 66 | py |
dmrgpy | dmrgpy-master/examples/mean_field/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
import spinchain
import meanfield
ns = np.array(range(4,30,2))
es = []
n = 6
spins = [2 for i in range(n)]
fo = open("SWEEP.OUT","w")
ps = np.linspace(0.,1.,20)
for p in ps: # loop over poara... | 711 | 19.342857 | 70 | py |
dmrgpy | dmrgpy-master/examples/XXZ_correlator/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 20
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0 #
D = 0.5
for i in range(n-... | 909 | 24.277778 | 66 | py |
dmrgpy | dmrgpy-master/examples/1dIsing/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
# This example shows the quantum phase transition in the transverse Ising model
# generate a 1D Ising chain
def get_gap(bx):
"""
Compute the gap of the 1D... | 1,024 | 24.625 | 80 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_extrapolate_moments/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 10
# create a random spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Ch... | 1,870 | 22.098765 | 73 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_fermionic_ED_VS_DMRG/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 4
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = 0
for i in range(n):
h = h + fc.Cdag[i]*fc.C[i]
# for ... | 1,847 | 23 | 72 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_fermionic_excited/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 4
fc = fermionchain.Fermionic_Chain(n) # create the chain
m = np.matrix(np.random.random((n,n)) + 1j*np.random.random((n... | 1,483 | 21.830769 | 72 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_spatial/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 10
# create an S=1/2 spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Chain(... | 1,191 | 19.551724 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_maxent/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 10
# create a random spin chain
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Chain(spin... | 1,437 | 18.69863 | 86 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_time_evolution/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
ns = np.array(range(4,30,2))
es = []
n = 5
spins = [2 for i in range(n)]
sc = spinchain.Spin_Chain(spins) # create the chain
def fj(i,j):
if 0.9<abs(i-j)<1... | 979 | 19 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_kondo/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
nb = 10
n = nb*2 + 1 + 1 # total number of sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
ic = nb # ... | 1,675 | 23.647059 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_parafermions/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import parafermionchain
n = 3
pc = parafermionchain.Parafermionic_Chain(n,Z=3) # create the chain
pc.test_ED()
h = 0
for i in range(n):
for j... | 1,458 | 23.728814 | 74 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_minimal/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
# create a random spin chain
#spins = [np.random.randint(2,5) for i in range(n)] # spin 1/2 heisenberg chain
spins = ["S=1/2" for i in range(n)] # spin 1... | 1,686 | 20.35443 | 79 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_sharpen/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 8
# create a random spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Cha... | 1,591 | 21.111111 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_cvm/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 4
# create a random spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Chain(... | 1,568 | 19.115385 | 95 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_non_local/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
# create an S=1/2 spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange (Heisenberg model)
sc = s... | 1,493 | 21.984615 | 76 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_three_spins/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 2
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
# create the Hamiltonian
Sx,S... | 821 | 19.04878 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_entropy/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 10
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
def fj(i,j):
if j==(i+1): return 1.... | 727 | 19.8 | 75 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_simple/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
# create a random spin chain
#spins = [np.random.randint(2,5) for i in range(n)] # spin 1/2 heisenberg chain
spins = ["S=1/2" for i in range(n)] # spin 1... | 929 | 19.217391 | 79 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_fermionic_ED_VS_KPM_VS_CVM/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 4
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = 0
raise # this should be double checked
for i in range(n... | 1,641 | 22.797101 | 72 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_excited/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
# create a random spin chain
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Chain(spins... | 1,769 | 20.071429 | 75 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_JW/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain,fermionchain
n = 6
site = 0
def get_spin():
# create a random spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create... | 1,359 | 21.295082 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_maxent_reconstruct/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 20
# create a random spin chain
spins = ["S=1/2" for i in range(n)] # spin 1 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Chain(... | 1,461 | 19.027397 | 69 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_v2_VS_v3/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 4
# create a random spin chain
spins = [np.random.randint(2,5) for i in range(n)] # spin 1/2 heisenberg chain
spins = [2 for i in range(n)] # spin 1/2 heis... | 1,376 | 19.25 | 78 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_accelerated/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 6
# create a random spin chain
spins = [np.random.randint(2,5) for i in range(n)] # spin 1/2 heisenberg chain
spins = [2 for i in range(n)] # spin 1/2 heis... | 1,468 | 19.402778 | 78 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_spatial_inhomogeneous/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
### This script will compute the dynamical correlator for a
# S=1/2 chain with an S=1 impurity in the middle
# and save it to the file CORRELATOR_VS_SITE.OUT
from dmrgpy import spinchain... | 1,978 | 23.432099 | 79 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_cvm_imaginary/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
n = 10
# create a random spin chain
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
# create first neighbor exchange
sc = spinchain.Spin_Chain(spin... | 1,418 | 18.438356 | 87 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_spinons/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain,spinchain
n = 4
# create first neighbor exchange
sc = fermionchain.Spinon_Chain(n) # create the spin chain
#sc = spinchain.Spin_Chain(["S=1/2" for i in ran... | 1,259 | 18.384615 | 79 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_fermionic_time_evolution/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
import matplotlib.pyplot as plt
from dmrgpy import fermionchain
n = 4
fc = fermionchain.Fermionic_Chain(n) # create the chain
m = np.matrix(np.random.random((n,n)) + 1j*np.random.random((n... | 1,649 | 21.916667 | 72 | py |
dmrgpy | dmrgpy-master/examples/dynamical_correlator/dynamical_correlator_shift/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import spinchain
import time
def get(a):
n = 10
# create a random spin chain
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
# create first neigh... | 1,355 | 18.652174 | 72 | py |
dmrgpy | dmrgpy-master/examples/hubbard_magnetization_with_edge_pinning/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import fermionchain
n = 20 # number of spinful fermionic sites
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = 0
U = 2.0 # hubbard
J = 1.0 # local exchange
# ... | 963 | 23.717949 | 72 | py |
dmrgpy | dmrgpy-master/examples/excited_fluctuations/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
import time
n = 16 # take n different sites
spins = [2 for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h =... | 683 | 21.064516 | 66 | py |
dmrgpy | dmrgpy-master/examples/central_charge_critical/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
from dmrgpy import spinchain
n = 100 # number of sites
spins = ["S=1/2" for i in range(n)] # spin 1/2 heisenberg chain
sc = spinchain.Spin_Chain(spins) # create the spin chain
h = 0 # initial... | 672 | 41.0625 | 76 | py |
dmrgpy | dmrgpy-master/examples/Hubbard_correlator_VS_size/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../src')
import numpy as np
def get(n):
from dmrgpy import fermionchain
U = 2.0 # value of U
fc = fermionchain.Spinful_Fermionic_Chain(n) # create the chain
h = 0
for i in range(n-1): # hopping
... | 966 | 23.175 | 71 | py |
dmrgpy | dmrgpy-master/examples/entanglement_entropy/correlation_entropy_nambu/main.py | # Add the root path of the dmrgpy library
import os ; import sys ; sys.path.append(os.getcwd()+'/../../../src')
import numpy as np
from dmrgpy import fermionchain
def get(U):
n = 4 # number of spinful fermionic sites
fc = fermionchain.Fermionic_Chain(n) # create the chain
h = 0
for i in range(n-1): # ... | 914 | 19.333333 | 69 | py |
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