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Deriving spacetime from first principles
Author(s) -
Ambjørn J.,
Jurkiewicz J.,
Loll R.
Publication year - 2010
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.201010414
Subject(s) - supersymmetry , grassmannian , physics , spacetime , theoretical physics , superspace , goldstone , mathematical physics , fermion , particle physics , quantum mechanics , mathematics , pure mathematics , geodesy , geography
Causal Dynamical Triangulation is a back‐to‐basics approach to nonperturbative, background‐independent quantum gravity, which relies on few ingredients and initial assumptions, has few free parameters and – crucially – is amenable to numerical simulations. After putting the approach in context, we briefly describe its set‐up and highlight some of its major, and sometimes unexpected findings. Prominent among them is the dynamical generation of a classical de Sitter universe from Planckian quantum fluctuations.