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Renormalization Group for Large N Strongly Commensurate Dirty Boson Model

M. B. Hastings
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Abstract

The large N sigma model, in D<4 space-time dimensions, with disorder a function of d space dimensions, is analyzed via a renormalization group treatment. Critical exponents for average quantities are calculated, first to lowest order and then to all orders, in $ε=D-2 - d/2$. In particular, it is found that $νd =2$. When D=d+1, this model is equivalent to a large N limit of the strongly commensurate dirty boson problem.

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BibTeXRIS

M. B. Hastings. 1999-06-28. Renormalization Group for Large N Strongly Commensurate Dirty Boson Model. https://doi.org/10.1103/physrevb.60.9755

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