Conformal Sigma Models with Anomalous Dimensions and Ricci Solitons
نویسنده
چکیده
We present new non-Ricci-flat Kähler metrics with U(N) and O(N) isometries as target manifolds of conformally invariant sigma models with an anomalous dimension. They are so-called Ricci solitons, special solutions to a Ricci-flow equation. These metrics explicitly contain the anomalous dimension and reduce to Ricci-flat Kähler metrics on the canonical line bundles over certain coset spaces in the limit of vanishing anomalous dimension. ∗E-mail: [email protected]
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