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cond-mat.str-el2001
The emergence of charged collective modes from a large N extrapolation of the Hubbard model
D. Foerster, A. A. Ovchinnikov
We consider a symplectic extrapolation of the Hubbard model of N fold replicated electrons and solve this model exactly in two special cases, at N=infinity in the bosonic sector an…
cond-mat.str-el1998
Magnetic Structure and NMR signal of Spin Peierls Solitons
D. Foerster, Y. Meurdesoif, B. Malet
We compute the magnetic profile of spin Peierls solitons in a simple Heisenberg model with magneto elastic couplings, using independently the DMRG method and the Hartree Fock appro…