An integrable model for the integer quantum Hall transition I: The vertex model

Details An integrable model for the integer quantum Hall transition I: The vertex model An integrable model for the integer quantum Hall transition I: The vertex model

1999-08-28

arxiv.org/abs/cond-mat/9908421v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

21 pages, latex

Scientific paper

In this study, an integrable vertex model based on the quantum affine superalgebra $U_q\bigl(\hat{gl}(2|2)\bigr)$ is constructed. The model is characterized by a particular assignment of spectral parameters and lowest as well as highest weight $U_q\bigl(gl(2|2) \bigr)$ modules to its lattice links. Solutions of the corresponding intertwining conditions yield the Boltzmann weights. The set of mutually commuting charges contains a quantity equivalent to the super spin chain Hamiltonian proposed for the description of the integer quantum Hall transition.

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