Indications of de Sitter spacetime from classical sequential growth dynamics of causal sets

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.083528· OSTI ID:21409583

Ahmed, Maqbool; Rideout, David ^[1]

---

1. Centre for Advanced Mathematics and Physics, Campus of College of E and ME, National University of Sciences and Technology, Peshawar Road, Rawalpindi, 46000 (Pakistan)

A large class of the dynamical laws for causal sets described by a classical process of sequential growth yields a cyclic universe, whose cycles of expansion and contraction are punctuated by single 'origin elements' of the causal set. We present evidence that the effective dynamics of the immediate future of one of these origin elements, within the context of the sequential growth dynamics, yields an initial period of de Sitter-like exponential expansion, and argue that the resulting picture has many attractive features as a model of the early universe, with the potential to solve some of the standard model puzzles without any fine-tuning.

• OSTI ID: 21409583
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 8; Other Information: DOI: 10.1103/PhysRevD.81.083528; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DE SITTER SPACE
DYNAMICS
EXPANSION
MATHEMATICAL SOLUTIONS
SIMULATION
SPACE-TIME
STANDARD MODEL
UNIVERSE
FIELD THEORIES
GRAND UNIFIED THEORY
MATHEMATICAL MODELS
MATHEMATICAL SPACE
MECHANICS
PARTICLE MODELS
QUANTUM FIELD THEORY
SPACE
UNIFIED GAUGE MODELS