Singularities and closed time-like curves in type-IIB 1/2 BPS geometries | Zendy

Giuseppe Milanesi | Zendy; Martin O’Loughlin | Zendy

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Singularities and closed time-like curves in type-IIB 1/2 BPS geometries

Author(s) -

Giuseppe Milanesi,

Martin O’Loughlin

Publication year - 2005

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2005/09/008

Subject(s) - gravitational singularity , singularity , moduli space , pure mathematics , class (philosophy) , mathematics

We study in detail the moduli space of solutions discovered in LLM relaxingthe constraint that guarantees the absence of singularities. The solutions fallinto three classes, non-singular, null-singular and time machines with atime-like naked singularity. We study the general features of these metrics andprove that there are actually just two generic classes of space-times - thosewith null singularities are in the same class as the non-singular metrics.AdS/CFT seems to provide a dual description only for the first of these twotypes of space-time in terms of a unitary CFT indicating the possible existenceof a chronology protection mechanism for this class of geometries.Comment: 34 pages, 7 figures, LaTeX. References adde

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