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- Universidade de São PauloBR4 papers
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5 papers · 1 filter
Kaluza-Klein models: can we construct a viable example?
Maxim Eingorn, Alexander Zhuk
In Kaluza-Klein models, we investigate soliton solutions of Einstein equation. We obtain the formulas for perihelion shift, deflection of light, time delay of radar echoes and PPN…
Low-frequency absorption cross section of the electromagnetic waves for the extreme Reissner-Nordstrom black holes in higher dimensions
Luis C. B. Crispino, Atsushi Higuchi, George E. A. Matsas
We investigate the low-frequency absorption cross section of the electromagnetic waves for the extreme Reissner-Nordstrom black holes in higher dimensions. We first construct the e…
Electromagnetic wave scattering by Schwarzschild black holes
Luís C. B. Crispino, Sam R. Dolan, Ednilton S. Oliveira
We analyze the scattering of a planar monochromatic electromagnetic wave incident upon a Schwarzschild black hole. We obtain accurate numerical results from the partial wave method…
Scalar radiation emitted from a rotating source around a Reissner-Nordstrom black hole
Luis C. B. Crispino, Andre R. R. da Silva, George E. A. Matsas
We investigate the radiation emitted from a scalar source in circular orbit around a Reissner-Nordstrom black hole. Particle and energy emission rates are analytically calculated i…
The Unruh effect and its applications
Luis C. B. Crispino, Atsushi Higuchi, George E. A. Matsas
It has been thirty years since the discovery of the Unruh effect. It has played a crucial role in our understanding that the particle content of a field theory is observer dependen…