Hi,
I would like to know if it is possible to implement within ALPS hamiltonians with imaginary terms like:
H=-i*Sum_{<i,j>} ( K_{ij}*[b(i)*bdag(j)-bdag(i)*b(j)])
(b and bdag are the usual creation/annihilation operators, K_{ij} is a parameter and i is the complex unit, i^2=-1)
Thanks in advance.
J. Vijande University of Valencia.