Dear alps team
I am using fulldiag program for a system of 2 by 2 plaquette on fermion hubbard. Now I want it to solve for 3 particles and Sz = 0.5. When I display the values for Sz, it comes out to be 1.5.
By hit and trial I come to know that alps only calculating Sz=0.5 for one particle only, when there are three particles Sz comes out to be 1.5. I definitely making some mistake in input file.
I need a program that calculate
2 by 2 plaquette with
fermion hubbard model with
3 particle and
total spin 0.5
My program statements are as under but they are calculating 3 particles and total spin Sz= 1.5 which I even not mentioned.
LATTICE_LIBRARY="/temp/ALPS/xml/lattices.xml";
MODEL_LIBRARY="/temp/ALPS/xml/models.xml";
MODEL="fermion Hubbard";
LATTICE="anisotropic square lattice";
MEASURE_AVERAGE[Density]="n"
MEASURE_AVERAGE[Magnetization]="Sz"
L=2;
W=2;
U=10.0;
CONSERVED_QUANTUMNUMBERS="Sz,N";
Sz_total=0.5;
N_Total=3;
{ t=1.0;}
I am student and therefore something I make comments in hurry.
Best Regards
Khalid Loane