Hi,
Can you explain what you mean by the result not being correct?
On Sep 18, 2015, at 05:06, Huaiming Guo hmguo@buaa.edu.cn wrote:
Dear all, I use dirloop_sse to calculate the hardcore-boson Hubbard model, but with next nearest neighbor hoppings. I revised the model and lattice as below or in the attached file. However the result is not correct. I want to know where the problem is. Thank you very much.
Sincerely, Huaiming Guo
<HAMILTONIAN name="hardcore boson"> <PARAMETER name="mu" default="0"/> <PARAMETER name="t" default="1"/> <PARAMETER name="V" default="0"/> <PARAMETER name="t'" default="0"/> <PARAMETER name="V'" default="0"/>
<PARAMETER name="t''" default="0"/> <PARAMETER name="V''" default="0"/>
<PARAMETER name="t0" default="t"/> <PARAMETER name="t1" default="t'"/> <PARAMETER name="V0" default="V"/> <PARAMETER name="V1" default="V'"/> <BASIS ref="hardcore boson"/> <SITETERM site="i"> <PARAMETER name="mu#" default="mu"/> -mu#*n(i) </SITETERM> <BONDTERM source="i" target="j"> <PARAMETER name="t#" default="0"/> <PARAMETER name="V#" default="0"/> -t#*(bdag(i)*b(j)+bdag(j)*b(i)) + V#*n(i)*n(j) </BONDTERM> </HAMILTONIAN>
<UNITCELL name="nnn2d" dimension="2"> <VERTEX/> <EDGE type="0"><SOURCE vertex="1" offset="0 0"/><TARGET vertex="1" offset="0 1"/></EDGE> <EDGE type="1"><SOURCE vertex="1" offset="0 0"/><TARGET vertex="1" offset="1 0"/></EDGE> <EDGE type="2"><SOURCE vertex="1" offset="0 0"/><TARGET vertex="1" offset="1 1"/></EDGE> <EDGE type="2"><SOURCE vertex="1" offset="0 0"/><TARGET vertex="1" offset="1 -1"/></EDGE> </UNITCELL>
<LATTICEGRAPH name = "ladder" vt_name="LadderLattice"> <FINITELATTICE> <LATTICE ref="square lattice"/> <PARAMETER name="W" default="2"/> <EXTENT dimension="1" size="L"/> <EXTENT dimension="2" size="W"/> <BOUNDARY dimension="1" type="periodic"/> <BOUNDARY dimension="2" type="open"/> </FINITELATTICE> <UNITCELL ref="nnn2d"/> </LATTICEGRAPH> <dd.dat>