On 9 Nov 2017, at 14:12, Sun Rongyang <sun-rongyang@outlook.com> wrote:Dear all,The definition method of a lattice in ALPS is delicate. But I meet a problem about dimension counting of a pure graph. On the one hand, I define an pure anisotropic graph as:*************************************************************************************************<GRAPH name="anisotropic open ladder graph test"><!-- type="0" means horizontal; type="1" means vertical --><EDGE tyep="0" source="1" target="2"/><EDGE tyep="0" source="2" target="3"/><EDGE tyep="0" source="3" target="4"/><EDGE tyep="0" source="4" target="5"/><EDGE tyep="0" source="6" target="7"/><EDGE tyep="0" source="7" target="8"/><EDGE tyep="0" source="8" target="9"/><EDGE tyep="0" source="9" target="10"/><EDGE tyep="1" source="1" target="6"/><EDGE tyep="1" source="2" target="7"/><EDGE tyep="1" source="3" target="8"/><EDGE tyep="1" source="4" target="9"/><EDGE tyep="1" source="5" target="10"/></GRAPH>*************************************************************************************************On the other hand, I use the default LATTICEGRAPH "open ladder", I copy here:*************************************************************************************************<LATTICE name="square lattice" dimension="2"><PARAMETER name="a" default="1"/><BASIS><VECTOR>a 0</VECTOR><VECTOR>0 a</VECTOR></BASIS><RECIPROCALBASIS><VECTOR>2*pi/a 0</VECTOR><VECTOR>0 2*pi/a</VECTOR></RECIPROCALBASIS></LATTICE><UNITCELL name="anisotropic2d" dimension="2"><VERTEX/><EDGE type="0"><SOURCE vertex="1" offset="0 0"/><TARGET vertex="1" offset="1 0"/></EDGE><EDGE type="1"><SOURCE vertex="1" offset="0 0"/><TARGET vertex="1" offset="0 1"/></EDGE></UNITCELL>with parameters L=2, W=5. Will they be treated as the same in ALPS? Or the graph equals as L=5,W=2 open ladder?<LATTICEGRAPH name = "open ladder" vt_name="OpenLadderLattice"><FINITELATTICE><LATTICE ref="square lattice"/><PARAMETER name="W" default="2"/><EXTENT dimension="1" size="L"/><EXTENT dimension="2" size="W"/><BOUNDARY dimension="1" type="open"/><BOUNDARY dimension="2" type="open"/></FINITELATTICE><UNITCELL ref="anisotropic2d"/></LATTICEGRAPH>*************************************************************************************************Thanks a lot!Best regards,Rongyang Sun
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