Regularization of brane induced gravity

Kolanović, Marko; Porrati, Massimo; Rombouts, Jan Willem

doi:10.1103/physrevd.68.064018

Cited by 75 publications

(75 citation statements)

References 17 publications

(28 reference statements)

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“…With a codimension greater than one the effects of a finite brane thickness can no longer be neglected ([8] - [12]), but the conclusions on the crossover scale or on the need for compactification remain the same. On the other hand one can also merge the setups of Randall-Sundrum and of DvaliGabadadze-Porrati [13].…”

Section: Introductionmentioning

confidence: 99%

Induced gravity in orientifold models

Kohlprath

2004

Nuclear Physics B

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We consider non-compact Z N orientifold models of type IIB superstring theory with four-dimensional gravity induced on a set of coincident D3-branes. For the models with odd N the contribution to the one-loop renormalization of the Planck mass is shown to come only from the torus and to be O(N ) as the contributions from annulus, Moebius strip and Klein bottle cancel. One can therefore realize the Dvali-Gabadadze-Porrati idea that four-dimensional gravity is induced by quantum effects at the one-loop level by considering large N .

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Section: Introductionmentioning

confidence: 99%

Induced gravity in orientifold models

Kohlprath

2004

Nuclear Physics B

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“…Moreover, it agrees with completions such as deconstructed orbifolds. The less common works including orthogonal terms use fat branes [46] or treat the orthogonal brane terms perturbatively to first order [9], which is non-singular. The first possibility reduces to the renormalized effective theory at scales lower than the physical width of the branes.…”

Section: Discussionmentioning

confidence: 99%

Effective description of brane terms in extra dimensions

Águila

Pérez-Victoria

Santiago

2006

J. High Energy Phys.

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We study how theories defined in (extra-dimensional) spaces with localized defects can be described perturbatively by effective field theories in which the width of the defects vanishes. These effective theories must incorporate a "classical" renormalization, and we propose a renormalization prescriptionà la dimensional regularization for codimension 1, which can be easily used in phenomenological applications. As a check of the validity of this setting, we compare some general predictions of the renormalized effective theory with those obtained in a particular ultraviolet completion based on deconstruction.

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“…In addition to this natural geometrical asymmetry, we allow the cap Planck scale, M C , to differ from that in the bulk, M B . If M C ≫ M B , this leads to an explicit realization of the regularization of brane-induced gravity [17]. The purpose of the present paper is to investigate in detail the behavior of weak gravity in such a braneworld.…”

Section: Introductionmentioning

confidence: 99%

“…(The divergence is the generic feature for N ≥ 2.) If one is to resolve this short distance singularity somehow, the regularization at UV will affect the behavior of gravity at IR [13,14,15,16,17,18]. (See also different approaches to construct higher codimension braneworlds with induced gravity [19,20].…”

Section: Introductionmentioning

confidence: 99%

UV caps, IR modification of gravity, and recovery of 4D gravity in regularized braneworlds

Kobayashi

2008

Phys. Rev. D

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In the context of six-dimensional conical braneworlds we consider a simple and explicit model that incorporates long distance modification of gravity and regularization of codimension-2 singularities. To resolve the conical singularities we replace the codimension-2 branes with ring-like codimension-1 branes, filling in the interiors with regular caps. The six-dimensional Planck scale in the cap is assumed to be much greater than the bulk Planck scale, which gives rise to the effect analogous to brane-induced gravity. Weak gravity on the regularized brane is studied in the case of a sharp conical bulk. We show by a linear analysis that gravity at short distances is effectively described by the four-dimensional Brans-Dicke theory, while the higher dimensional nature of gravity emerges at long distances. The linear analysis breaks down at some intermediate scale, below which fourdimensional Einstein gravity is shown to be recovered thanks to the second-order effects of the brane bending.

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Regularization of brane induced gravity

Cited by 75 publications

References 17 publications

Induced gravity in orientifold models

Induced gravity in orientifold models

Effective description of brane terms in extra dimensions

UV caps, IR modification of gravity, and recovery of 4D gravity in regularized braneworlds

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