A Small Cosmological Constant and Backreaction of Non-Finetuned Parameters

Abstract

We include the backreaction on the warped geometry induced by non-finetuned parameters in a two domain-wall set-up to obtain an exponentially small Cosmological Constant ${\Lambda }_4$. The mechanism to suppress the Cosmological Constant involves one classical fine-tuning as compared to an infinity of finetunings at the quantum level in standard D=4 field theory.

13 pages, minor corrections and references added

References in corpus (12)

• Modulus Stabilization with Bulk Fields
• Quantum Gravity In De Sitter Space
• Self-tuning flat domain walls in 5d gravity and string theory
• A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World
• Radius Stabilization and Anomaly-Mediated Supersymmetry Breaking
• The Cosmological Constant Problem from a Brane-World Perspective
• Four-Flux and Warped Heterotic M-Theory Compactifications
• Enlarging the Parameter Space of Heterotic M-Theory Flux Compactifications to Phenomenological Viability
• A Small Cosmological Constant, Grand Unification and Warped Geometry
• The Type I D-instanton and its M-theory Origin
• Testing Stability of M-Theory on an S^1/Z_2 Orbifold
• Dual Brane Pairs, Chains and the Bekenstein-Hawking Entropy

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• A symmetry for vanishing cosmological constant in an extra dimensional toy model
• Ghost Cosmology: Exact Solutions, Transitions Between Standard Cosmologies and Ghost Dark Energy/Matter Evolution
• Higher curvature gravity at the LHC
• S-Track Stabilization of Heterotic de Sitter Vacua
• A Small Cosmological Constant, Grand Unification and Warped Geometry
• Supersymmetry Breaking with Zero Vacuum Energy in M-Theory Flux Compactifications
• Antisymmetric tensor fields in a generalized Randall-Sundrum scenario
• A self-tuning mechanism in (3+p)d gravity-scalar theory
• Long-lived Charginos in the Focus-point Region of the MSSM Parameter Space
• Gauge and moduli hierarchy in a multiply warped braneworld scenario
• NS-branes in 5d brane world models
• Cosmological Constant of the $(p+1)$-Dimensional World, Embedded in the $d$-Dimensional Bulk Space
• Towards Dark Energy from String-Theory
• Self-T-Dual Brane Cosmology and the Cosmological Constant Problem
• Flexible extra dimensions
• Spontaneous branes formation
• Formation and evolution of a 2-brane structure in multidimensional $f(R)$ gravity
• Cosmology and matter induced branes