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Particle production from marginally trapped surfaces of general spacetimes
Senovilla, José MM; Torres Herrera, Ramon
Universitat Politècnica de Catalunya. Departament de Física Aplicada
We provide a general formalism that allows to analyze the phenomenon of tunneling in arbitrary spacetimes. We show that a flux of particles produced by tunneling through general marginally trapped surfaces may be perceived by some privileged observers. We discuss how this particle perception can be related to Hawking/Unruh radiation in specific cases. Our approach naturally leads to an expression for the effective surface gravity of marginally trapped surfaces. The procedure is applicable to general astrophysical and cosmological dynamical situations. Some practical examples for known and new cases are provided.
Peer Reviewed
Àrees temàtiques de la UPC::Arquitectura
Àrees temàtiques de la UPC::Física
Black holes
Dynamical horizons
Hawking/Unruh radiation

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