corner
corner

Phys. Rev. D 70, 104026 (2004) [4 pages]

Black holes from colliding wavepackets

Download: PDF (86 kB) Buy this article Export: BibTeX or EndNote (RIS)

Steven B. Giddings*
Department of Physics and Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA

Vyacheslav S. Rychkov
Institute for Theoretical Physics, University of Amsterdam, 1018XE Amsterdam, The Netherlands

Received 21 September 2004; published 23 November 2004

Arguments for black hole formation in collisions of high-energy particles have rested on the emergence of a closed trapped surface in the classical geometry of two colliding Aichelburg-Sexl solutions. Recent analysis has, however, shown that curvatures and quantum fluctuations are large on this apparent horizon, potentially invalidating a semiclassical analysis. We show that this problem is an artifact of the unphysical classical point-particle limit: for a particle described by a quantum wavepacket, or for a continuous matter distribution, trapped surfaces indeed form in a controlled regime.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.70.104026
DOI:
10.1103/PhysRevD.70.104026
PACS:
04.70.–s, 04.60.–m

*Electronic address: giddings@physics.ucsb.edu

Permanent address.

Electronic address: rychkov@science.uva.nl