Abstract
I survey the kinds of critical behavior believed to be exhibited in twodimensional disordered systems. I review the different replica sigma models used to describe the low-energy physics, and discuss how critical points appear because of WZW and theta terms.
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Fendley, P. (2001). Critical Points in Two-Dimensional Replica Sigma Models. In: Tsvelik, A.M. (eds) New Theoretical Approaches to Strongly Correlated Systems. NATO Science Series, vol 23. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0838-9_6
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DOI: https://doi.org/10.1007/978-94-010-0838-9_6
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