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No horizons in pp-waves
2002
Journal of High Energy Physics
We argue that pp-wave backgrounds can not admit event horizons. We also comment on pp-wave generalizations which would admit horizons and show that there exists a black string solution which asymptotes to a five dimensional plane wave background.
doi:10.1088/1126-6708/2002/11/021
fatcat:xetgfkckmzb4bjmgrnrqqcp3sq