On Mar 6, 2013, at 2:25 AM, Bo-Nan JIANG bonanjiang@gmail.com wrote:
Hi,all If I set the constraint quantum number to be Sz in the Kondo lattice model, but do not specify which type it is(spin or fermion), so does it mean that the conserved quantum number is the total Sz of Sz_spin + Sz_fermion?
Yes
And if I set the type of constraint to be spin or fermion, in other orders, type="1" or type="0", then the conserved quantum number is the total Sz of spin or fermion?
While for quantum number N which only belongs to type="0" alternative fermion (SITEBASIS "spin" does not have it), then whether I specify the type or not in <CONSTRAINT >, the conserved quantum number shall always be the the total number of fermion.This is my understanding of this part of ALPS, and am I right?
No, there are no types in constraints. If you want to restrict it to one particle type then you'll have to introduce a new quantum number.
Bo-Nan
-- Stay foolish,Stay hungry.