Bulk Fields in Dilatonic and Self-Tuning Flat Domain Walls

Abstract

We study the Kaluza-Klein zero modes of massless bulk fields with various spins in the background of dilatonic and self-tuning flat domain walls. We find that the zero modes of all the massless bulk fields in such domain wall backgrounds are normalizable, unlike those in the background of the non-dilatonic domain wall with infinite extra space of Randall and Sundrum. In particular, gravity in the bulk of dilatonic domain walls is effectively compactified to the Einstein gravity with vanishing cosmological constant and nonzero gravitational constant in one lower dimensions for any values of dilaton coupling parameter, provided the warp factor is chosen to decrease on both sides of the domain wall, in which case the tension of the domain wall is positive. However, unexpectedly, for the self-tuning flat domain walls, the cosmological constant of the zero mode effective gravity action in one lower dimensions does not vanish, indicating the need for additional ingredient or modification necessary in cancellation of the unexpected cosmological constant in the graviton zero mode effective action.

24 pages, LaTeX, revised version with minor corrections to appear in Nucl. Phys. B

References in corpus (14)

• Modulus Stabilization with Bulk Fields
• Neutrino masses and mixings in non-factorizable geometry
• Universal Aspects of Gravity Localized on Thick Branes
• Gravitational Stability and Renormalization-Group Flow
• Localization of Matter and Cosmological Constant on a Brane in Anti de Sitter Space
• Self-tuning flat domain walls in 5d gravity and string theory
• Bulk Standard Model in the Randall-Sundrum Background
• Bulk Fields in the Randall-Sundrum Compactification Scenario
• A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World
• Supergravity on the Brane
• Anti-deSitter Vacua of Gauged Supergravities with 8 Supercharges
• Supersymmetric Multiple Basin Attractors
• Dilatonic Randall-Sundrum Theory and renormalisation group
• A Note on Solitons in Brane Worlds

Cited by in corpus (28)

• Gravitational Lorentz Violations and Adjustment of the Cosmological Constant in Asymmetrically Warped Spacetimes
• A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World
• Domain wall brane in squared curvature gravity
• Thick Brane Split Caused by Spacetime Torsion
• Extra Force in Brane Worlds
• Tensor perturbations of $f(R)$-branes
• Tensor perturbations of $f(T)$-branes
• Dynamical Stability of Six-Dimensional Warped Brane-Worlds
• Exact Solutions and the Cosmological Constant Problem in Dilatonic-Domain-Wall Higher-Curvature String Gravity
• Domain Walls with Localised Gravity and Domain-Wall/QFT Correspondence
• Moduli fields and brane tensions: generalizing the junction conditions
• Supergravity, Non-Conformal Field Theories and Brane-Worlds
• Strings, Branes and Extra Dimensions
• Localization of Gravity on Dilatonic Domain Walls: Addendum to ``Solitons in Brane Worlds''
• Exact solutions for a Maxwell-Kalb-Ramond action with dilaton: Localization of massless and massive modes in a sine-Gordon brane-world
• Localization of Scalar Fluctuations in a Dilatonic Brane-World Scenario
• Confluent Heun functions in gauge theories on thick braneworlds
• Kalb-Ramond excitations in a thick-brane scenario with dilaton
• Dilatonic quantum multi-brane-worlds
• Localization of Bulk Form Fields on Dilatonic Domain Walls
• Localization of scalar field on the brane-world by coupling with gravity
• Dilatonic p-Branes and Brane Worlds
• Dilatonic Domain Walls and Curved Intersecting Branes
• The Radion Mode in Consistent Brane-World Reductions
• Restrictions on dilatonic brane-world models
• Bulk Fields in Delocalized Dilatonic p-Branes
• Standard Cosmology on a Self-Tuning Domain Wall
• Cosmology of Dilatonic Brane World