Yes, you need to add a parameter COMPLEX=1 to force the code to use complex numbers. On latices this is automatically implied if you use translational symmetry, but on graphs it is not.
On Nov 21, 2011, at 9:13 AM, Volodymyr Derzhko wrote:
I am sorry, but I did not understand your comment regarding setting parameter COMPLEX. Did you mean to change something in parameter’s file? Not two write, "tl0=exp(-I/4); tr0=exp(I/4);" but to set parameters in a different way?
Thank you in advance!
Do you want to use this with an ED or DMRG code> If so, have you tried setting the parameter COMPLEX ?
Matthias