Dear all,
I want to use QMC in ALPS to simulate Bose-Hubbard model with NNN interaction, we know for NN interaction V, we can define V as following: <BONDTERM source="i" target="j"> <PARAMETER name="V" default="0"/> V*n(i)*n(j) </BONDTERM>
Now I want to include NNN interaction, how can I define it? (source="i" target="*?*")
Best regards, Tao Ying