Arias, E.Krein, Gastão Inácio [UNESP]Menezes, G. [UNESP]Svaiter, N. F.2013-09-302014-05-202013-09-302014-05-202012-09-10International Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 27, n. 22, p. 17, 2012.0217-751Xhttp://hdl.handle.net/11449/24302We 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.17engQuantum fields in curved space-timewave propagation in random mediaArtigo10.1142/S0217751X12501291WOS:000308228700012Acesso restrito5704289678296630