1 research outputs found
On the instability of 3d null singularities
String propagation on a three-dimensional Lorentzian string orbifold with a
null singularity has been studied by Horowitz and Steif, and more recently by
Liu, Moore and Seiberg. We analyze the target space as a classical
gravitational background. The singularity becomes spacelike when an arbitrarily
small amount of matter is thrown at the singularity. This can be seen directly
by studying the null singularity as a limit of the M=0, J=0 BTZ black hole
metric.Comment: 9 pages, uses harvmac.tex. v2: minor wording changes in introduction,
fixed reference typo, new reference