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Ultrarelativistic particle collisions
Matthew W Choptuik1, Frans Pretorius
1CIFAR Cosmology and Gravity Program, Department of Physics and Astronomy, University of British Columbia, Vancouver British Columbia, V6T 1Z1 Canada.
Physical Review Letters
|April 7, 2010
Summary
High-energy soliton collisions form black holes, confirming theories of gravitational collapse. This research demonstrates black hole formation in particle collisions beyond the Planck scale.
Area of Science:
- * Theoretical physics
- * General relativity
- * Gravitational wave astrophysics
Background:
- * Solitons are stable, particle-like waves that can interact without dispersing.
- * The hoop conjecture posits that a black hole forms if enough mass is compressed within a certain radius.
- * Ultrarelativistic energies probe extreme physics, including gravitational collapse.
Purpose of the Study:
- * To investigate the outcome of head-on collisions between two ultrarelativistic solitons.
- * To determine if black hole formation occurs under these conditions.
- * To test the validity of the hoop conjecture in high-energy gravitational interactions.
Main Methods:
- * Numerical solution of the Einstein field equations.
- * Simulation of two solitons colliding at speeds approaching the speed of light.
- * Analysis of the spacetime geometry and energy distribution post-collision.
Main Results:
- * Demonstrated black hole formation from soliton-soliton collisions at sufficiently high energies.
- * Confirmed that nonlinear gravitational interactions drive the collapse.
- * Results align with predictions from the hoop conjecture.
Conclusions:
- * Black hole formation is a robust consequence of high-energy gravitational interactions.
- * The study supports the idea that particle collisions at super-Planck scales can lead to black hole creation.
- * Nonlinear effects in general relativity are crucial for understanding extreme cosmic events.
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