11 citations · 15 across the 4 of their papers we have counts for
5 papers
Free fermion description of a paramagnetic Mott insulator
Johan Nilsson, Matteo Bazzanella
A scheme is presented that enables a description of a paramagnetic Mott insulator in terms of free fermions. The main idea is to view the physical fermions as a part of a multi-ban…
Non-Linear Methods in Strongly Correlated Electron Systems
Matteo Bazzanella, Johan Nilsson
We analyze the structure of the group of (local) non-linear canonical transformations that exist in a system with n fermionic modes. To perform our study we develop an alternative…
Ferromagnetism in the one-dimensional Kondo lattice: mean-field approach via Majorana fermion canonical transformation
Matteo Bazzanella, Johan Nilsson
Using a canonical transformation it is possible to faithfully represent the Kondo lattice model in terms of Majorana fermions. Studying this representation we discovered an exact m…
Majorana fermion description of the Kondo lattice: Variational and Path integral approach
Johan Nilsson, Matteo Bazzanella
All models of interacting electrons and spins can be reformulated as theories of interacting Majorana fermions. We consider the Kondo lattice model that admits a symmetric represen…
The Effect of Interactions on the Conductance of Graphene Nanoribbons
M. Bazzanella, P. Faccioli, E. Lipparini
We study the effects of the interaction between electrons and holes on the conductance G of quasi-one-dimensional graphene systems. We first consider as a benchmark the limit in wh…