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Advances in High Energy Physics
Volume 2015, Article ID 739153, 7 pages
Research Article

Resonance Spectra of Caged Stringy Black Hole and Its Spectroscopy

Department of Physics, Eastern Mediterranean University, Gazimagosa, Northern Cyprus, Mersin 10, Turkey

Received 7 November 2014; Revised 20 January 2015; Accepted 20 January 2015

Academic Editor: George Siopsis

Copyright © 2015 I. Sakalli and G. Tokgoz. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.


Maggiore’s method (MM), which evaluates the transition frequency that appears in the adiabatic invariant from the highly damped quasinormal mode (QNM) frequencies, is used to investigate the entropy/area spectra of the Garfinkle–Horowitz–Strominger black hole (GHSBH). Instead of the ordinary QNMs, we compute the boxed QNMs (BQNMs) that are the characteristic resonance spectra of the confined scalar fields in the GHSBH geometry. For this purpose, we assume that the GHSBH has a confining cavity (mirror) placed in the vicinity of the event horizon. We then show how the complex resonant frequencies of the caged GHSBH are computed using the Bessel differential equation that arises when the scalar perturbations around the event horizon are considered. Although the entropy/area is characterized by the GHSBH parameters, their quantization is shown to be independent of those parameters. However, both spectra are equally spaced.