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Matsas, George Emanuel Avraam; Richartz, Maurício; Saa, Alberto Vazquez; Silva, André Ricardo Rocha da; Vanzella, Daniel Augusto Turolla
(2009)
We revisit the mechanism for violating the weak cosmic-censorship conjecture (WCCC) by overspinning a nearly-extreme charged black hole. The mechanism consists of an incoming massless neutral scalar particle, with low ...
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Matsas, George Emanuel Avraam; Silva, André Ricardo Rocha da
(2005)
We propose an extension of the original thought experiment proposed by Geroch, which sparked much of the actual debate and interest on black hole thermodynamics, and show that the generalized second law of thermodynamics ...
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Matsas, George Emanuel Avraam; Silva, André Ricardo Rocha da
(2007)
We examine a nearly extreme macroscopic Reissner-Nordstrom black hole in the context of semiclassical gravity. The absorption rate associated with the quantum tunneling process of scalar particles whereby this black hole ...
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Crispino, Luís Carlos Bassalo; Silva, André Ricardo Rocha da; Matsas, George Emanuel Avraam
(2008)
We investigate the radiation emitted from a scalar source in circular orbit around a Reissner- Nordstr¨om black hole. Particle and energy emission rates are analytically calculated in the low- and high-frequency regimes ...
