On Nov 18, 2011, at 4:18 PM, A. Giovanni Ramirez Garcia wrote:
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Hello all,
I'm following the tutorial to build a bond operator, then checking the models library (in the liveALPS version) I found this
<BONDOPERATOR name="biquadratic" source="x" target="y"> (exchange_xy(i,j)+Sz(i)*Sz(j))*(exchange_xy(i,j)+Sz(i)*Sz(j)) </BONDOPERATOR>
Now my question: Should we change the source/target pair from "x,y" to be "i,j" since we use "i,j" in the definition?
Yes, indeed.
Matthias