On Dec 29, 2008, at 10:45 AM, Cezary Sliwa wrote:
Matthias Troyer wrote:
Indeed - the QMC codes cannot do fermions
OK, thanks.
Cannot evaluate expression Sminus(i)
You have not defined any operator Sminus
There is one defined. The Hamiltonian is "spin", the lattice is "spin lattice" (both from the libraries I attached previously).
You need to define it for each basis set you define - you cannot mix operators from different basis sets.
Matthias Troyer