l wonder if it is possible to calculate the pair green function (<c^\dag_i1
c^\dag_i2 c_j1 c_j2>) with DMRG.
It can not carry out using the old version, is it available in 2.0 ?
thank you very much.
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Chen Ahai
Department of Physics, Zhejiang Normal University
Jinhua, Zhejiang Province, 321004, China
e-mail: chenahaiphysics@gmail.com;
chenahai@yahoo.cn