Arbitrarily long-lived quasinormal modes in a wormhole background
M. S. Churilova, R. A. Konoplya, A. Zhidenko
Abstract
Arbitrarily long lived modes, called quasi-resonances, are known to exist in the spectrum of massive fields for a number of black-hole backgrounds at some discrete values of mass of the field. Here we show that these modes also exist in the background of wormholes, unless a wormhole has a constant red-shift function, that is, tideless in the radial direction. The evidence of quasi-resonances is supported by calculations in the frequency and time domains, which are in a good concordance. At large masses of the field, time-domain profiles of the absolute value of the wave function have peculiar behavior: the long-lived modes dominate in the signal after a long period of power-law tails.
Topics & Concepts
WormholePhysicsField (mathematics)Black hole (networking)Spectral densityFunction (biology)Constant (computer programming)Mode (computer interface)Quantum electrodynamicsTheoretical physicsStatisticsMathematicsBiologyRouting protocolComputer scienceOperating systemProgramming languagePure mathematicsComputer networkLink-state routing protocolRouting (electronic design automation)Evolutionary biologyPulsars and Gravitational Waves ResearchAstrophysical Phenomena and ObservationsAstrophysics and Cosmic Phenomena