Dynamical Casimir effect for gravitons in bouncing braneworlds

Journal Article · Thu Nov 15 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.104014· OSTI ID:21027840

Ruser, Marcus; Durrer, Ruth ^[1]

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1. Departement de Physique Theorique, Universite de Geneve, 24 quai Ernest Ansermet, 1211 Geneva 4 (Switzerland)

We consider a two-brane system in five-dimensional anti-de Sitter space-time. We study particle creation due to the motion of the physical brane which first approaches the second static brane (contraction) and then recedes from it (expansion). The spectrum and the energy density of the generated gravitons are calculated. We show that the massless gravitons have a blue spectrum and that their energy density satisfies the nucleosynthesis bound with very mild constraints on the parameters. We also show that the Kaluza-Klein modes cannot provide the dark matter in an anti-de Sitter braneworld. However, for natural choices of parameters, backreaction from the Kaluza-Klein gravitons may well become important. The main findings of this work have been published in the form of a Letter [R. Durrer and M. Ruser, Phys. Rev. Lett. 99, 071601 (2007)].

• OSTI ID: 21027840
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 10 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANES
CASIMIR EFFECT
ENERGY DENSITY
ENERGY SPECTRA
GRAVITONS
KALUZA-KLEIN THEORY
NONLUMINOUS MATTER
NUCLEOSYNTHESIS
QUANTUM FIELD THEORY