Quasinormal modes and Hawking radiation of black holes in cubic gravity
R. A. Konoplya, A. F. Zinhailo, Zdeněk Stuchlík
Abstract
We consider quasinormal modes and Hawking radiation of four-dimensional asymptotically flat black holes in the most general up to-cubic-order-in-curvature dimension-independent Einsteinian theory of gravity that shares its graviton spectrum with the Einstein theory on constant curvature backgrounds. We show that damping rate and real oscillation frequencies of quasinormal modes for scalar, electromagnetic and Dirac fields are suppressed once the coupling with the cubic term is on. The intensity of Hawking radiation is suppressed as well, leading to, roughly, one order longer lifetime at a sufficiently large coupling constant.
Topics & Concepts
PhysicsHawking radiationGravitonCoupling constantCurvatureBlack hole (networking)Quasinormal modeQuantum electrodynamicsGeneral relativityMicro black holeQuantum mechanicsMathematical physicsClassical mechanicsScalar fieldGravitationGravitational waveGeometryLink-state routing protocolRouting protocolRouting (electronic design automation)Computer scienceMathematicsComputer networkBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesPulsars and Gravitational Waves Research