Braneworlds in six dimensions: new models with bulk scalars

Abstract

Six dimensional bulk spacetimes with 3-- and 4--branes are constructed using certain non--conventional bulk scalars as sources. In particular, we investigate the consequences of having the phantom (negative kinetic energy) and the Brans--Dicke scalar in the bulk while obtaining such solutions. We find geometries with 4--branes with a compact on--brane dimension (hybrid compactification) which may be assumed to be small in order to realize a 3--brane world. On the other hand, we also construct, with similar sources, bulk spacetimes where a 3--brane is located at a conical singularity. Furthermore, we investigate the issue of localization of matter fields (scalar, fermion, graviton, vector) on these 3-- and 4--branes and conclude with comments on our six dimensional models.

24 pages, 1 figure, Replaced to match version published in Class. Quant. Grav

References in corpus (59)

• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• The Hierarchy Problem and New Dimensions at a Millimeter
• New Dimensions at a Millimeter to a Fermi and Superstrings at a TeV
• Phenomenology, Astrophysics and Cosmology of Theories with Sub-Millimeter Dimensions and TeV Scale Quantum Gravity
• Phantom Energy and Cosmic Doomsday
• Modulus Stabilization with Bulk Fields
• Can the dark energy equation-of-state parameter w be less than -1?
• Neutrino masses and mixings in non-factorizable geometry
• Braneworld models of dark energy
• Gravity in the Randall-Sundrum Brane World
• An exotic class of Kaluza-Klein models
• Localization of Matter and Cosmological Constant on a Brane in Anti de Sitter Space
• Bulk Fields in the Randall-Sundrum Compactification Scenario
• Localizing Gravity on a String-Like Defect in Six Dimensions
• Solving the Hierarchy Problem with Noncompact Extra Dimensions
• Nonsingular global string compactifications
• Localization of Matters on a String-like Defect
• Brane world: disappearing massive matter
• Fermion zero-modes on brane-worlds
• Einstein gravity on the codimension 2 brane?
• Localisation of massive fermions on the brane
• Scalar kinks and fermion localisation in warped spacetimes
• Spheres, Deficit Angles and the Cosmological Constant
• Warp Factors and Extended Sources in Two Transverse Dimensions
• How to Test Stringy Dark Energy?
• Consistency Conditions for Brane Worlds in Arbitrary Dimensions
• Standard 4d gravity on a brane in six dimensional flux compactifications
• Codimension-two branes in six-dimensional supergravity and the cosmological constant problem
• A 6-D Brane World Model
• Exact Black Holes and Gravitational Shockwaves on Codimension-2 Branes
• A Solution to the Hierarchy Problem with an Infinitely Large Extra Dimension and Moduli Stabilization
• Fermions in Kaluza-Klein and Randall-Sundrum Theories
• Multigravity in six dimensions: Generating bounces with flat positive tension branes
• Dynamical Stability of Six-Dimensional Warped Brane-Worlds
• Nonlinear multidimensional cosmological models with form fields: stabilization of extra dimensions and the cosmological constant problem
• A novel braneworld model with a bulk scalar field
• Brane in 6D with increasing gravitational trapping potential
• A Formalism to Analyze the Spectrum of Brane World Scenarios
• The General Warped Solution with Conical Branes in Six-dimensional Supergravity
• On braneworld cosmologies from six dimensions, and absence thereof
• Localization of Fields on a Brane in Six Dimensions
• Brane-bulk matter relation for a purely conical codimension-2 brane world
• Warped Flux Compactification and Brane Gravity
• Fermion generations, masses and mixings in a 6D brane model
• QED from six-dimensional vortex and gauge anomalies
• Dark energy cosmologies for codimension-two branes
• Gravity localization on string-like defects in codimension two and the AdS/CFT correspondence
• Bulk phantom fields, increasing warp factors and fermion localisation
• Hybrid brane worlds in the Salam-Sezgin model
• Gravitational Localization of All Local Fields on the Brane
• Conformally Invariant Braneworld and the Cosmological Constant
• Cosmological Evolution of a Purely Conical Codimension-2 Brane World
• Gravity localization with a domain wall junction in six dimensions
• Gravitational Localization of Matters in 6D
• Single 3-Brane Brane-World in Six Dimension
• On the stability of field-theoretical regularizations of negative tension branes
• The cosmological constant problem in codimension-two brane models
• Geometry of deformations of branes in warped backgrounds

Cited by in corpus (27)

• Localization of Fermions on a String-like Defect
• 6D thick branes from interacting scalar fields
• Null fluid collapse in brane world models
• Bounds on topological Abelian string-vortex and string-cigar from information-entropic measure
• Effective field equation on m-brane embedded in n-dimensional bulk of Einstein and f(R) gravity
• Fermions in Self-dual Vortex Background on a String-like Defect
• Localization of fermionic fields on braneworlds with bulk tachyon matter
• Braneworld gravitational collapse from a radiative bulk
• Anti-de-Sitter Island-Universes from 5D Standing Waves
• de Sitter branes with a bulk scalar
• Field localization and Nambu Jona-Lasinio mass generation mechanism in an alternative 5-dimensional brane model
• Vector and fermion fields on a bouncing brane with a decreasing warp factor in a string-like defect
• Geodesic motion in the neighbourhood of submanifolds embedded in warped product spaces
• Reducing Constraints in a Higher Dimensional Extension of the Randall and Sundrum Model
• A 6D standing-wave Braneworld with normal matter as source
• Matter-gravity interaction in a multiply warped braneworld,
• Consistency Conditions for Fields Localization on Braneworlds
• Brane bounce-type configurations in a string-like scenario
• Tensor gauge field localization on a string-like defect
• The five dimensional universal hypermultiplet and the cosmological constant problem
• Towards an hybrid compactification with a scalar-tensor global cosmic string
• 7D Randall-Sundrum cosmology, brane-bulk energy exchange and holography
• Standing Waves Braneworlds
• Five-dimensional warped product space-time with time-dependent warping and a scalar field in the bulk
• Non-${\mathbb{Z}}_2$ symmetric braneworlds in scalar tensorial gravity
• Zero Modes of Matter Fields on Scalar Flat Thick Branes
• FLRW embeddings in ${\mathbb{R}}^{n+2}$, differential geometry and conformal photon propagator