Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2011-02-08
J.Stat.Mech.1104:P04004,2011
Physics
Condensed Matter
Statistical Mechanics
28 pages, 7 figures, 3 tables, 1 appendix, this work is based on chapter 4 of the authors PhD Thesis: L. Huijse, A supersymmet
Scientific paper
10.1088/1742-5468/2011/04/P04004
We present a full identification of lattice model properties with their field theoretical counter parts in the continuum limit for a supersymmetric model for itinerant spinless fermions on a one dimensional chain. The continuum limit of this model is described by an $\mathcal{N}=(2,2)$ superconformal field theory (SCFT) with central charge c=1. We identify states and operators in the lattice model with fields in the SCFT and we relate boundary conditions on the lattice to sectors in the field theory. We use the dictionary we develop in this paper, to give a pedagogical explanation of a powerful tool to study supersymmetric models based on spectral flow. Finally, we employ the developed machinery to explain numerically observed properties of the particle density on the open chain presented in Beccaria et al. PRL 94:100401 (2005).
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