New area bounds for marginally trapped surfaces are derived from Einstein tensor components and stability parameters, realized in ultra-massive spacetimes even for non-positive cosmological constant under strong energy-momentum conditions.
Relativity and Gravitation. 100 years after Einstein in Prague
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The authors derive non-perturbative first and second laws for dynamical black holes, identifying entropy with the area of local marginally trapped surfaces rather than the global event horizon.
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New bounds for the area of MOTS and generalized ultra-massive spacetimes
New area bounds for marginally trapped surfaces are derived from Einstein tensor components and stability parameters, realized in ultra-massive spacetimes even for non-positive cosmological constant under strong energy-momentum conditions.
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Thermodynamics of dynamical black holes beyond perturbation theory
The authors derive non-perturbative first and second laws for dynamical black holes, identifying entropy with the area of local marginally trapped surfaces rather than the global event horizon.