shift current

[claudio]

Dear xiaomeng

you will find the shift current in the file

o.YamboPy-Sigma_probe_order_0

the column 1 is the energy

columns 2,3 are the imaginary and real part along x-direction
columns 4,5 are the imaginary and real part along y-direction
columns 6,7 are the imaginary and real part along y-direction

notice that imaginary part is almost zero within the numerical error

best
claudio