Irish Quantum Foundations      26-27 May 2016


Talk Info Marc Casals

Marc Casals

Quantum dress for a naked singularity

We investigate semiclassical backreaction on a conical naked singularity space-time with a negative cosmological constant in (2+1)-dimensions. In particular, we calculate the renormalized quantum stress-energy tensor for a conformally coupled scalar field on such naked singularity space-time. We then obtain the backreacted metric via the semiclassical Einstein equations. We show that, at least formally, semiclassical backreaction dresses the naked singularity with an event horizon. Finally, on a similar but different setting, we obtain the semiclassical backreaction on a rotating BTZ black hole space-time and study its properties.