367 citations · 1.3k across the 8 of their papers we have counts for
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The Recurrent Variational Approach applied to the Electronic Structure of Conjugated Polymers
S. Pleutin, E. Jeckelmann, M. A. Martin-Delgado +1
In this note, first the Recurrent Variational Approach (RVA) is introduced by using as example a non-trivial spin-model, the spin-1/2 antiferromagnetic two-leg-ladder. Then, a firs…
A Rotating-Valence-Bond scenario for the 2D Antiferromagnetic Heisenberg Model
German Sierra, Miguel A. Martin-Delgado
We propose that the valence bonds forming the ground state of the 2D-AF Heisenberg model on a square lattice may rotate under the effect of the antiferromagnetic background. To tes…
Strongly Interacting Spinless Fermions in D=1 and 2 Dimensions: A Perturbative-Variational Approach
Miguel A. Martin-Delgado, German Sierra
We propose a perturbative-variational approach to interacting fermion systems on 1D and 2D lattices at half-filling. We address relevant issues such as the existence of Long Range…