Domain wall interacting with a black hole: A new example of critical phenomena

Details Domain wall interacting with a black hole: A new example of critical phenomena Domain wall interacting with a black hole: A new example of critical phenomena

1998-11-16

arxiv.org/abs/hep-th/9811148v1

Phys.Rev. D59 (1999) 125008

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 5 postscript figures included

Scientific paper

10.1103/PhysRevD.59.125008

We study a simple system that comprises all main features of critical gravitational collapse, originally discovered by Choptuik and discussed in many subsequent publications. These features include universality of phenomena, mass-scaling relations, self-similarity, symmetry between super-critical and sub-critical solutions, etc. The system we consider is a stationary membrane (representing a domain wall) in a static gravitational field of a black hole. For a membrane that spreads to infinity, the induced 2+1 geometry is asymptotically flat. Besides solutions with Minkowski topology there exists also solutions with the induced metric and topology of a 2+1 dimensional black hole. By changing boundary conditions at infinity, one finds that there is a transition between these two families. This transition is critical and it possesses all the above-mentioned properties of critical gravitational collapse. It is remarkable that characteristics of this transition can be obtained analytically. In particular, we find exact analytical expressions for scaling exponents and wiggle-periods. Our results imply that black hole formation as a critical phenomenon is far more general than one might expect.

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