Particle Creation in the Bell-Szekeres Spacetime

Details Particle Creation in the Bell-Szekeres Spacetime Particle Creation in the Bell-Szekeres Spacetime

1995-11-24

arxiv.org/abs/gr-qc/9511065v1

Class.Quant.Grav. 12 (1995) 2723-2734

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages. To appear in Class. Quantum Grav. 12, November (1995)

Scientific paper

10.1088/0264-9381/12/11/005

The quantization of a real massless scalar field in a spacetime produced in a collision of two electromagnetic plane waves with constant wave fronts is considered. The background geometry in the interaction region, the Bell-Szekeres solution, is locally isometric to the conformally flat Bertotti-Robinson universe filled with a uniform electric field. It is shown that before the waves interact the Bogoliubov coefficients relating different observers are trivial and no vacuum polarization takes place. In the non- singular interaction region neutral scalar particles are produced with number of created particles and spectrum typical of gravitational wave collision.

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