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Brane-localized Gravity

2005 Science
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Release : 2005
Genre : Science
Kind : eBook
Book Rating : 136/5 ( reviews)

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Book Synopsis Brane-localized Gravity by : Philip D. Mannheim

Download or read book Brane-localized Gravity written by Philip D. Mannheim. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: This timely and valuable book provides a detailed pedagogical introduction and treatment of the brane-localized gravity program of Randall and Sundrum, in which gravitational signals are able to localize around our four-dimensional world in the event that it is a brane embedded in an infinitely-sized, higher dimensional anti-de Sitter bulk space. A completely self-contained development of the material needed for brane-world studies is provided for both students and workers in the field, with a significant amount of the material being previously unpublished. Particular attention is given to issues not ordinarily treated in the brane-world literature, such as the completeness of tensor gravitational fluctuation modes, the causality of brane-world propagators, and the status of the massless graviton fluctuation mode in brane worlds in which it is not normalizable.

Brane-localized Gravity

2005 Science
Download Brane-localized Gravity PDF Online Free

Author :
Release : 2005
Genre : Science
Kind : eBook
Book Rating : 612/5 ( reviews)

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Book Synopsis Brane-localized Gravity by : Philip D. Mannheim

Download or read book Brane-localized Gravity written by Philip D. Mannheim. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: This timely and valuable book provides a detailed pedagogical introduction and treatment of the brane-localized gravity program of Randall and Sundrum, in which gravitational signals are able to localize around our four-dimensional world in the event that it is a brane embedded in an infinitely-sized, higher dimensional anti-de Sitter bulk space. A completely self-contained development of the material needed for brane-world studies is provided for both students and workers in the field, with a significant amount of the material being previously unpublished. Particular attention is given to issues not ordinarily treated in the brane-world literature, such as the completeness of tensor gravitational fluctuation modes, the causality of brane-world propagators, and the status of the massless graviton fluctuation mode in brane worlds in which it is not normalizable.

Vanishing of Cosmological Constant and Fully Localized Gravity in a Brane World with Extra Time(s)

2001
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Release : 2001
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Vanishing of Cosmological Constant and Fully Localized Gravity in a Brane World with Extra Time(s) by : Z. Berezhiani

Download or read book Vanishing of Cosmological Constant and Fully Localized Gravity in a Brane World with Extra Time(s) written by Z. Berezhiani. This book was released on 2001. Available in PDF, EPUB and Kindle. Book excerpt:

Experimental Probes of Localized Gravity

2000
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Author :
Release : 2000
Genre :
Kind : eBook
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Book Synopsis Experimental Probes of Localized Gravity by :

Download or read book Experimental Probes of Localized Gravity written by . This book was released on 2000. Available in PDF, EPUB and Kindle. Book excerpt: The phenomenology of the Randall-Sundrum model of localized gravity is analyzed in detail for the two scenarios where the Standard Model (SM) gauge and matte fields are either confined to a TeV scale 3-brane or may propagate in a slice of five dimensional anti-deSitter space. In the latter instance, the authors derive the interactions of the graviton, gauge, and fermion Kaluza-Klein (KK) states. The resulting phenomenological signatures are shown to be highly dependent on the value of the 5-dimensional fermion mass and differ substantially from the case where the SM fields lie on the TeV-brane. In both scenarios, they examine the collider signatures for direct production of the graviton and gauge KK towers as well as their induced contributions to precision electroweak observables. These direct and indirect signatures are found to play a complementary role in the exploration of the model parameter space. In the case where the SM field content resides on the TeV-brane, they show that the LHC can probe the full parameter space and hence will either discover or exclude this model if the scale of electroweak physics on the 3-brane is less than 10 TeV. They also show that spontaneous electroweak symmetry breaking of the SM must take place on the TeV-brane.

Massive Gravity on a Brane

2003
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Release : 2003
Genre :
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Book Synopsis Massive Gravity on a Brane by :

Download or read book Massive Gravity on a Brane written by . This book was released on 2003. Available in PDF, EPUB and Kindle. Book excerpt: At present no theory of a massive graviton is known that is consistent with experiments at both long and short distances. The problem is that consistency with long distance experiments requires the graviton mass to be very small. Such a small graviton mass however implies an ultraviolet cutoff for the theory at length scales far larger than the millimeter scale at which gravity has already been measured. In this paper we attempt to construct a model which avoids this problem. We consider a brane world setup in warped AdS spacetime and we investigate the consequences of writing a mass term for the graviton on a the infrared brane where the local cutoff is of order a large (galactic) distance scale. The advantage of this setup is that the low cutoff for physics on the infrared brane does not significantly affect the predictivity of the theory for observers localized on the ultraviolet brane. For such observers the predictions of this theory agree with general relativity at distances smaller than the infrared scale but go over to those of a theory of massive gravity at longer distances. A careful analysis of the graviton two-point function, however, reveals the presence of a ghost in the low energy spectrum. A mode decomposition of the higher dimensional theory reveals that the ghost corresponds to the radion field. We also investigate the theory with a brane localized mass for the graviton on the ultraviolet brane, and show that the physics of this case is similar to that of a conventional four dimensional theory with a massive graviton, but with one important difference: when the infrared brane decouples and the would-be massive graviton gets heavier than the regular Kaluza-Klein modes, it becomes unstable and it has a finite width to decay off the brane into the continuum of Kaluza-Klein states.

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