diff --git a/academic_codes/2019.11.01_conductance_calculation_using_Green_functions/conductance_calculation_with_guan.py.py b/academic_codes/2019.11.01_conductance_calculation_using_Green_functions/conductance_calculation_with_guan.py.py
new file mode 100644
index 0000000..f13ca30
--- /dev/null
+++ b/academic_codes/2019.11.01_conductance_calculation_using_Green_functions/conductance_calculation_with_guan.py.py
@@ -0,0 +1,8 @@
+import guan
+import numpy as np
+
+fermi_energy_array = np.linspace(-4, 4, 400)
+h00 = guan.finite_size_along_one_direction(5)
+h01 = np.identity(5)
+conductance_array = guan.calculate_conductance_with_fermi_energy_array(fermi_energy_array, h00, h01)
+guan.plot(fermi_energy_array, conductance_array, xlabel='E', ylabel='Conductance', type='-')
\ No newline at end of file