Search results for "REISSNER-NORDSTROEM"

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Quantum stress tensor for extreme 2D Reissner-Nordström black holes

2004

Contrary to previous claims, it is shown that the expectation values of the quantum stress tensor for a massless scalar field propagating on a two-dimensional extreme Reissner-Nordstrom black hole are indeed regular on the horizon.

High Energy Physics - TheoryPhysicsNuclear and High Energy PhysicsBLACK HOLEWhite holeFOS: Physical sciencesREISSNER-NORDSTROEMGeneral Relativity and Quantum Cosmology (gr-qc)FuzzballGeneral Relativity and Quantum CosmologyBlack holeHigh Energy Physics::TheoryGeneral Relativity and Quantum CosmologyMicro black hole2D ENERGY-MOMENTUM TENSORHigh Energy Physics - Theory (hep-th)HORIZONQuantum mechanicsExtremal black holeFísica nuclearVirtual black holeBlack hole thermodynamicsMathematical physicsHawking radiationPhysical Review D
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Pseudospectrum of Reissner-Nordström black holes: Quasinormal mode instability and universality

2021

Black hole spectroscopy is a powerful tool to probe the Kerr nature of astrophysical compact objects and their environment. The observation of multiple ringdown modes in gravitational waveforms could soon lead to high-precision gravitational spectroscopy, so it is critical to understand if the quasinormal mode spectrum is stable against perturbations. It was recently shown that the pseudospectrum can shed light on the spectral stability of black hole quasinormal modes. We study the pseudospectrum of Reissner-Nordstr\"om spacetimes and we find a spectral instability of scalar and gravitoelectric quasinormal modes in subextremal and extremal black holes, extending similar findings for the Sch…

star: compactspace-time: Schwarzschildblack hole: Reissner-NordstroemScalar (mathematics)[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph]01 natural sciencesGeneral Relativity and Quantum CosmologyGravitationGeneral Relativity and Quantum Cosmology0103 physical sciencesQuasinormal mode010306 general physicsperturbation: gravitationMathematical PhysicsMathematical physicsPseudospectrumPhysicsSpacetime010308 nuclear & particles physicsHorizonquasinormal modegravitational radiationblack hole: stabilityMathematics::Spectral Theorystabilityblack hole: quasinormal modequasinormal mode: spectrumBlack holeperturbation: scalarwave: model[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Schwarzschild radius
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