6533b7d7fe1ef96bd126863a
RESEARCH PRODUCT
Conformal and non-conformal symmetries in 2D dilaton gravity
Miguel NavarroJosé Navarro-salasJ. CruzC. F. Talaverasubject
PhysicsHigh Energy Physics - TheoryNuclear and High Energy PhysicsSigma modelCGHS modelSemiclassical physicsFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Symmetry (physics)General Relativity and Quantum CosmologyGeneral Relativity and Quantum CosmologyHigh Energy Physics::TheoryHigh Energy Physics - Theory (hep-th)Solvable modelsHomogeneous spaceAstronomiaDilatonInvariant (mathematics)Simetria (Física)Effective actionNon-conformal symmetriesMathematical physicsdescription
We introduce new extra symmetry transformations for generic 2D dilaton-gravity models. These symmetries are non-conformal but special linear combinations of them turn out to be the extra (conformal) symmetries of the CGHS model and the model with an exponential potential. We show that one of the non-conformal extra symmetries can be converted into a conformal one by means of adequate field redefinitions involving the metric and the derivatives of the dilaton. Finally, by expressing the Polyakov-Liouville effective action in terms of an auxiliary invariant metric, we construct one-loop models which maintain the extra symmetry of the classical action. © 1997 Elsevier Science B.V.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-06-17 |