Propagação e espalhamento de odas escalares em espaços-tempos de dimensões superiores

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

In this Dissertation we study the scattering of massless monochromatic scalar waves by 5-dimensional (5D) Schwarzschild-Tangherlini black holes. We compute the scattering phase shifts using Prüfer method for high frequencies and high-values of the angular multipole index l. The phase shifts are then used to analyze the glory effect, in comparison with the respective 4D values. In the case of low frequencies th total absorption is completely absent in some cases. The oscillatory behavior of the phase shift for large values of l, typical in the 4D case, now becomes absent. For high frequencies, the total absorption starts at much lower values of l, compared to the 4D case.

ASSUNTO(S)

black holes buracos negros espalhamento de onda higher dimensions dimensões superiores fisica wave scattering

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