Title: "Energy Bursts on Cauchy Horizons?"
Certain initial data of the Einstein equations of classical
relativity lead to singularities from which world lines emerge.
Such singularities are called naked and they lead to loss of
predictability beyond a limit called the Cauchy horizon.
There is no local characterization of such a horizon in
classical relativity. Using quantum fields in curved backgrounds
I seek to characterize such horizons. In the example of
dust collapse, one finds that the quantum stress tensor diverges
on the horizon. I shall discuss this issue and comment on its