Title
Thermal radiation from a fluctuating event horizon
Date Issued
10 September 2012
Access level
open access
Resource Type
research article
Author(s)
Abstract
We consider a pointlike two-level system undergoing uniformly accelerated motion. We evaluate the transition probability rate of this system coupled to a massless scalar field near a fluctuating event horizon. Such horizon fluctuations are generated using random noise. We study the case of centered, stationary and Gaussian random processes. The transition probability of the two-level system is obtained from the positive-frequency Wightman function calculated to one-loop order in the noise averaging process. Our results show how this fluctuating-horizon model modifies the response function of the two-level system. © World Scientific Publishing Company.
Volume
27
Issue
22
Language
English
OCDE Knowledge area
Termodinámica
Subjects
Scopus EID
2-s2.0-84866647848
Source
International Journal of Modern Physics A
ISSN of the container
0217751X
Sponsor(s)
N. F. Svaiter would like to acknowledge the hospitality of the Instituto de Física Teórica, Universidade Estadual Paulista, where part of this research was carried out. G. Menezes would like to acknowledge the hospitality of the Physics and Astronomy Department of Tufts University, where part of this research was carried out. We would like to thank L. H. Ford, E. Goulart and F. F. Tovar for useful discussions. This work was partially supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico — CNPq, Fundacão de Amparo à Pesquisa do Estado do Rio de Janeiro — FAPERJ and Fundacão de Amparo à Pesquisa do Estado de São Paulo — FAPESP.
Sources of information:
Directorio de Producción Científica
Scopus