Fixed Lines in Four Fermion Models in Two Dimensions
arxiv(2024)
摘要
Motivated by conjectures about near-horizon dynamics in quantum gravity, we
search for lines of perturbatively accessible fixed points emanating from
models of N free fermions. Through two loops we find a new class of models,
apart from the well-known Abelian Thirring models. Further study is needed to
see whether these can lead to true conformal manifolds, or perhaps a new class
of large N fixed points.
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