THERMAL RADIATION FROM A FLUCTUATING EVENT HORIZON
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World Scientific Publ Co Pte Ltd
World Scientific Publishing
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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.
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International Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 27, n. 22, p. 17, 2012.
