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Inflationary cosmology and braneworld scenarios
Author(s) -
Lidsey J.E.
Publication year - 2006
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200510187
Subject(s) - cosmic string , physics , cosmic microwave background , superstring theory , cosmology , cosmic cancer database , inflation (cosmology) , theoretical physics , universe , big bang (financial markets) , topological defect , cosmic background radiation , observational cosmology , astrophysics , anisotropy , particle physics , dark energy , string (physics) , supersymmetry , quantum mechanics , finance , economics
Cosmology has undergone a significant advance in recent years both observationally and theoretically. New high quality data from a host of Cosmic Microwave Background and high redshift surveys has provided strong support for the inflationary paradigm, which postulates that the universe expanded exponentially fast when it was a fraction of a second old. A key question that has arisen is the nature of the underlying physics that drove such a phase of accelerated expansion. An exciting theoretical development has been the realization that the standard model interactions may be confined to a four–dimensional brane, whereas gravitational interactions may also propagate through the extra dimensions. The radical proposal of the ‘braneworld scenario’ is that our observable universe is a brane embedded in a higher–dimensional bulk. We will review some of the recent developments in this field.