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Gravitational Forces in the Brane World
R. Arnowitt ; J. Dent ;
Rating:	Members: 1.16/5 (1 reader) \| Visitors: 5/5 (1 visitor)
Date:	1 Dec 2004
Subject:	hep-th astro-ph hep-ph
Abstract:	We consider the problem of gravitational forces between point particles on the branes in a Randall-Sundrum (R-S) two brane model with $S^1/Z_2$ symmetry. Matter is assumed to produce a perturbation to the R-S vacuum metric and all the 5D Einstein equations are solved to linearized order (for arbitrary matter on both branes). We show that while the gauge condition $h_{i5} = 0, i=0,1,2,3$ can always be achieved without brane bending, the condition $h_{55} = 0$ leads to large brane bending. The static potential arising from the zero modes and the corrections due to the Kaluza-Klein (KK) modes are calculated. Gravitational forces on the Planck ($y_1 = 0$) brane recover Newtonian physics with small KK corrections (in accord with other work). However, forces on the TeV ($y_2$) brane due to particles on that brane are strongly distorted by large R-S exponentials.
Source:	arXiv, hep-th/0412016
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1 review found:
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1. Science-advisor.net review 07100048 (1 reader) Rate this comment.


Review title:	Important Factual Errors
Reviewer:	reviewer927
Date:	13 October 2007 at 16:02 GMT.
Comment:	Why would you assume that matter produces pterbation to the R-S vacuum metric? Remember assumptions make an ASS out of U and ME. I also have a problem with your idea of gravitational forces between point particles on the brains in a Randall-Sundrum two brain model. I think in this type of medium you need to use proper and precise terminology and spelling, we are all scientists here so lets call a spade a spade and point particles on the brain "axons". "Brain bending"? more like "Crazy"! Also I think we can be relatively sure that any gravitation between brain particles will be small. Real small. Have you ever heard of "G = (M1 * M2)/d^2? It is called highschool open a book you retard. P.S. I believe you mean "$S^1/Y_2$ symmetry"

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