# A Model of Black Hole Evaporation and 4D Weyl Anomaly

@article{Kawai2017AMO, title={A Model of Black Hole Evaporation and 4D Weyl Anomaly}, author={Hikaru Kawai and Yuki Yokokura}, journal={Universe}, year={2017}, volume={3}, pages={51} }

We analyze the time evolution of a spherically-symmetric collapsing matter from the point of view that black holes evaporate by nature. We consider conformal matters and solve the semi-classical Einstein equation G μ ν = 8 π G 〈 T μ ν 〉 by using the four-dimensional Weyl anomaly with a large c coefficient. Here, 〈 T μ ν 〉 contains the contribution from both the collapsing matter and Hawking radiation. The solution indicates that the collapsing matter forms a dense object and evaporates without…

## 43 Citations

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### Asymptotic states of black holes in KMY model

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The ingoing Vaidya metric is introduced as a model for a non-rotating uncharged black hole emitting Hawking radiation. This metric is expected to capture the physics of the spacetime for radial…

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In this paper, a natural generalization of KMY model is proposed for the evaporation of charged black holes. Within the proposed model, the back reaction of Hawking radiation is considered. More…

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