Classical energy-momentum tensor renormalization via effective field theory methods
General Relativity and Gravitation, ISSN: 0001-7701, Vol: 42, Issue: 10, Page: 2491-2509
2010
- 4Citations
- 5Captures
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Article Description
We apply the Effective Field Theory approach to General Relativity, introduced by Goldberger and Rothstein, to study point-like and string-like sources in the context of scalar-tensor theories of gravity. Within this framework we compute the classical energy-momentum tensor renormalization to first Post-Newtonian order or, in the case of extra scalar fields, up to first order in the (non-derivative) trilinear interaction terms: This allows to write down the corrections to the standard (Newtonian) gravitational potential and to the extra-scalar potential. In the case of one-dimensional extended sources we give an alternative derivation of the renormalization of the string tension enabling a re-analysis of the discrepancy between the results obtained by Dabholkar and Harvey in one paper and by Buonanno and Damour in another, already discussed in the latter. © 2010 Springer Science+Business Media, LLC.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77956678959&origin=inward; http://dx.doi.org/10.1007/s10714-010-0998-0; http://link.springer.com/10.1007/s10714-010-0998-0; http://link.springer.com/content/pdf/10.1007/s10714-010-0998-0; http://link.springer.com/content/pdf/10.1007/s10714-010-0998-0.pdf; http://link.springer.com/article/10.1007/s10714-010-0998-0/fulltext.html; http://www.springerlink.com/index/10.1007/s10714-010-0998-0; http://www.springerlink.com/index/pdf/10.1007/s10714-010-0998-0; https://dx.doi.org/10.1007/s10714-010-0998-0; https://link.springer.com/article/10.1007/s10714-010-0998-0
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