17 Jan
2017
17 Jan
'17
4:10 p.m.
?Hello, I just wanted to ask if it is possible to preserve a combination of quantum numbers such as the total number of excitations: N = \sum_{bosonic sites} n_j + 1/2 \sum_{spinful sites} s_z and what the syntax for this would be? I guess that one option would be to define a new quantum number and let Splus raise it by 1/2 but I just thought that I would check this with you first! Otherwise, thank you for an excellent library! I have had no problems so far with the new release. Thanks, /Axel Gagge First year PhD Student, Stockholm University