Local energy decay of massive Dirac fields in the 5D Myers-Perry metric

Details Local energy decay of massive Dirac fields in the 5D Myers-Perry metric Local energy decay of massive Dirac fields in the 5D Myers-Perry metric

2012-02-08

arxiv.org/abs/1202.1630v1

Physics

Mathematical Physics

40 pages

Scientific paper

We consider massive Dirac fields evolving in the exterior region of a 5-dimensional Myers-Perry black hole and study their propagation properties. Our main result states that the local energy of such fields decays in a weak sense at late times. We obtain this result in two steps: first, using the separability of the Dirac equation, we prove the absence of a pure point spectrum for the corresponding Dirac operator; second, using a new form of the equation adapted to the local rotations of the black hole, we show by a Mourre theory argument that the spectrum is absolutely continuous. This leads directly to our main result.

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