Vacuum Effects in a Conformally Flat Brane-Cosmology and Radion Stabilization

Author: Saharian A.A.¹

Source: Astrophysics, Volume 46, Number 1, January 2003 , pp. 103-113(11)

Publisher: Springer

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Abstract:

Vacuum quantum effects in a conformally coupled scalar field on the background of a conformally flat geometry of brane worlds are studied. Based on the corresponding results for a Minkowski space-time in the general case of mixed boundary conditions on the branes, formulas are derived for the vacuum averaged energy-momentum tensor and for the vacuum forces acting on the boundaries. The important special case of AdS background is examined and applications to the Randall-Sundrum model are discussed. The possible stabilization of the radion by vacuum forces is demonstrated.

Language: English

Document Type: Research article

Affiliations: 1: Yerevan State University, Armenia saharyan@server.physdep.r.am

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