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Colliding impulsive gravitational waves and a cosmological constant

Abstract : We present a space-time model of the collision of two homogeneous, plane impulsive gravitational waves (each having a delta function profile propagating in a vacuum before collision and for which the post-collision space-time has constant curvature. The profiles of the incomong waves are k*\delta(u) and l*\delta(v) where k,l are real constants and u=0, v=0 are the intersecting null hypersurfaces. The cosmological constant \Lambda in the post-collision region of the space-time is given by \Lambda = -6*k*l.
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https://hal.archives-ouvertes.fr/hal-01203245
Contributor : Claude Barrabès Connect in order to contact the contributor
Submitted on : Wednesday, September 30, 2015 - 1:36:08 PM
Last modification on : Tuesday, January 11, 2022 - 5:56:09 PM
Long-term archiving on: : Thursday, December 31, 2015 - 10:12:23 AM

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Claude Barrabès, P. A. Hogan. Colliding impulsive gravitational waves and a cosmological constant. Physical Review, American Physical Society (APS), 2015, Physical Review D, 92, pp.044032. ⟨hal-01203245⟩

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