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Friday 13 November 2009, 13:00-14:00
Averaging inhomogeneities in scalar-tensor cosmology
- đ¤ Speaker: Vincenzo Vitagliano, SISSA
- đ Date & Time: Friday 13 November 2009, 13:00 - 14:00
- đ Venue: Pavilion B Potter Room (B1.19)
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David Seery
Abstract
The backreaction of inhomogeneities on the cosmic dynamics is studied in the context of scalar-tensor gravity. Due to terms of indefinite sign in the non-canonical effective energy tensor of the Brans-Dicke-like scalar field, extra contributions to the cosmic acceleration can arise. Brans-Dicke and metric f® gravity are presented as specific examples.
Series This talk is part of the DAMTP Friday GR Seminar series.
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