Vacuum Energy and Black Hole Geometry
Pei-Ming Ho1*
1Physics, National Taiwan University, Taipei, Taiwan
* Presenter:Pei-Ming Ho,
We consider semi-classical Einstein equations modified by the vacuum expectation value of the energy-momentum tensor in quantum field theories. Static configurations and dynamical collapsing processes are studied. The presence/absence of horizon is found to be sensitive to the details of the quantum vacuum energy.

Keywords: Black holes, Semi-classical Einstein equations, Vacuum stress energy tensor, Back reaction, Horizon