Published April 15, 2010 | Version v1
Journal article

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

  • 1. Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2L 2Y5 (Canada)
  • 2. Centre for Advanced Mathematics and Physics, Campus of College of E and ME, National University of Sciences and Technology, Peshawar Road, Rawalpindi, 46000 (Pakistan)

Description

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.

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
81
Journal Issue
8
Journal Page Range
p. 083528-083528.11
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42002744
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
DE SITTER SPACE; DYNAMICS; EXPANSION; MATHEMATICAL SOLUTIONS; SIMULATION; SPACE-TIME; STANDARD MODEL; UNIVERSE
Descriptors DEC
FIELD THEORIES; GRAND UNIFIED THEORY; MATHEMATICAL MODELS; MATHEMATICAL SPACE; MECHANICS; PARTICLE MODELS; QUANTUM FIELD THEORY; SPACE; UNIFIED GAUGE MODELS

Optional Information

Notes
(c) 2010 The American Physical Society