HOME FACULTY STUDENTS RESEARCH PUBLICATIONS COURSES

RESEARCH > Quasi-normal modes Quasi-normal modes describe small perturbations of a black hole at equilibrium. A black hole is a thermodynamical system whose (Hawking) temperature and entropy are given in terms of its global characteristics (total mass, charge and angular momentum). In general, quasi-normal modes are obtained by solving a wave equation for small fluctuations subject to the conditions that the flux be ingoing at the horizon and outgoing at asymptotic infinity. One then obtains a discrete spectrum of complex frequencies. The imaginary part of these frequencies determines the decay time of the small fluctuations. Black holes in AdS space Black holes in asymptotically flat space

Department of Physics and Astronomy e-mail: siopsis AT tennessee DOT edu

Voice: (865) 974-7859 Fax: (865) 974-7843

401 Nielsen Physics Bldg., The University of Tennessee, Knoxville, TN 37996-1200, U.S.A.