Multiband models for field theories with anomalous current dimension
classification
✦ hep-th
cond-mat.str-el
keywords
anomalouscurrentdimensionmodelssymmetryapproximateconservedcoupled
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We give simple examples of weakly coupled or free quantum mechanical systems that exhibit scale invariance with an anomalous dimension for a conserved current. In these models scaling as an exact symmetry only emerges in a large N limit, but it remains as an approximate symmetry even at finite N.
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