Dark Energy and String Theory
arXiv:1905.08269 · doi:10.1016/j.physletb.2019.134950
Abstract
A radiatively stable de Sitter spacetime is constructed by considering an intrinsically non-commutative and generalized-geometric formulation of string theory, which is related to a family of F-theory models endowed with non-trivial anisotropic axion-dilaton backgrounds. In particular, the curvature of the canonically conjugate dual space provides for a positive cosmological constant to leading order, that satisfies a radiatively stable see-saw-like formula, which in turn induces the dark energy in the observed spacetime. We also comment on the non-commutative phase of the non-perturbative formulations of string theory/quantum gravity implied by this approach.
arXiv comment9 pages, text revised throughout the paper, in particular our reinterpretation of Tseytlin's original argument, where we directly relate the intensive action to the cosmological constant, as well as stressing that the models represent effective stringy solutions with an effective world-sheet description that is, to lowest order, doubled and generically non-commutative
References in corpus (37)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- M Theory As A Matrix Model: A Conjecture
- Noncommutative Field Theory
- A 2.4% Determination of the Local Value of the Hubble Constant
- Quantum Field Theory on Noncommutative Spaces
- Evidence for F-Theory
- Beyond the Cosmological Standard Model
- A Large-N Reduced Model as Superstring
- Flux Compactification
- Flux compactifications in string theory: a comprehensive review
- On the Cosmological Implications of the String Swampland
- De Sitter Space and the Swampland
- Renormalisation of ϕ^4-theory on noncommutative R^4 in the matrix base
- What if string theory has no de Sitter vacua?
- Solving the Hierarchy Problem with Noncompact Extra Dimensions
- Lectures on the Cosmological Constant Problem
- Born Reciprocity in String Theory and the Nature of Spacetime
- On the cosmological constant problem
- Is Supersymmetry Really Broken?
- Constraining de Sitter Space in String Theory
- Vacuum Energy Sequestering: The Framework and Its Cosmological Consequences
- Cold Dark Matter with MOND Scaling
- Constraints on String Cosmology
- Nonsingular global strings
- Three-Dimensional Supergravity and the Cosmological Constant
- F-theory and Dark Energy
- Pixelated Dark Energy
- Quantum Spaces are Modular
- Self-dual noncommutative ϕ^4-theory in four dimensions is a non-perturbatively solvable and non-trivial quantum field theory
- Non-Commutative Calabi-Yau Manifolds
- The Theory of Metaparticles
- Testing MONDian Dark Matter with Galactic Rotation Curves
- The Cosmological Constant and the Deconstruction of Gravity
- de Sitter Spacetimes from Warped Compactifications of IIB String Theory
- Relating the Cosmological Constant and Supersymmetry Breaking in Warped Compactifications of IIB String Theory
- Modified Dark Matter in Galaxies and Galaxy Clusters
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- Relaxing cosmological tensions with a sign switching cosmological constant
- On de Sitter Spacetime and String Theory
- T-Branes and Backgrounds
- Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
- Reference level of the vacuum energy density of the Universe and astrophysical data
- de Sitter duality and logarithmic decay of dark energy
- Chiral Symmetry and the Cosmological Constant
- Interference and Oscillation in Nambu Quantum Mechanics
- Bi-metric Universe with Matter
- On Stringy de Sitter Spacetimes
- Dark Matter in a bi-metric universe