Tachyon Back Reaction on $d = 2$ String Black Hole

Details Tachyon Back Reaction on $d = 2$ String Black Hole Tachyon Back Reaction on $d = 2$ String Black Hole

1993-03-25

arxiv.org/abs/hep-th/9303140v2

Nucl.Phys. B407 (1993) 191-212

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, TCD-3-93. Revised: minor typos corrected; `Notes added in Proof' along with more references

Scientific paper

10.1016/0550-3213(93)90279-X

We describe a static solution for $d = 2$ critical string theory including the tachyon $T$ but with its potential $V (T)$ set to zero. This solution thus incorporates tachyon back reaction and, when $T = 0$, reduces to the black hole solution. When $T \neq 0$ we find that (1) the Schwarzschild horizon of the above black hole splits into two, resembling Reissner-Nordstrom horizons and (2) the curvature scalar develops new singularities at the horizons. We show that these features will persist even when $V (T)$ is nonzero. We present a time dependent extension of our static solution and discuss some possible methods for removing the above singularities.

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