Dear All, I want to work with the same system with a little bit different.
(e↑,0,0,0)- spin up electron,first row of the 4X4matrix (0,e↓,0,0)- spin down electron,second row of the 4X4matrix (0,0, h ↓, 0 )- spin down hole,third row of the 4X4matrix (0,0, 0,h↑ )- spin up hole, fourth row of the 4X4matrix and I want to add spins in a superconductor system that is connected to two normal leads. In the superconductor is it right to separate the system into holes and electrons as mentioned in "https://kwant-project.org/doc/1.0/tutorial/tutorial5";? I did it and then added the normal leads as similar to tutorial5 (lat_h and lat_e) but when I ran to compute the smatrix.transmission((0, 1), (0, 0)) there is an error. IndexError: index 2 is out of bounds for axis 0 with size 2 If I want to use the other method mentioned in "https://kwant-project.org/doc/1/tutorial/superconductors"; to build the system How can I build the main system and add the parameters of the Hamiltonian, my sites have 4 orbitals and I did not find any information on how to add parameters to build the system and leads. Thanks very much in advance! Zahra Aslani
