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A Space/Time Interchange Symmetry of Rotating AdS Black Holes in General Dimensions

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arxiv 2405.05367 v1 pith:LRHUUNMW submitted 2024-05-08 hep-th gr-qc

classification hep-thgr-qc
keywords symmetrytimeangularblackcoordinatesdimensionslongitudinalmathbb
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abstract

We revisit the previously known local inversion symmetry of the five-dimensional Kerr-AdS metric that relates the over-rotating black hole to the under-rotating one and reinterpret it as an interchanging symmetry between time and the longitudinal angular coordinates. We generalize this to all $D$ dimensions, including $D=4$, thereby enlarging the trivial linear $\mathbb Z_N$ symmetry of the $N=\lfloor(D-1)/2\rfloor$ longitudinal angular coordinates to the nonlinearly realized $\mathbb Z_{N+1}$ symmetry that involves time.

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