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Title:
Comments on Disordered Conformal Field Theories
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Abstract:
We consider Conformal Field Theories perturbed by quenched disorder. Such systems often flow to new, disordered, fixed points of there normalization group. For the Ising model in d = 3 with random bonds, we calculate some properties of the disordered fixed point in perturbation theory in the heat capacity exponent. Our results are consistent with experimental data. We further analyze several aspects of large-N disordered theories. A natural large-N limit of theories with disorder is identied. We find a nontrivial generalization of the Imry-Ma instability. The beta functions at large N can be computed exactly. The presence of double trace operators
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