causal dynamical triangulations

E807317

approach to quantum gravity lattice quantum gravity approach theoretical physics model

Causal dynamical triangulations is an approach to quantum gravity that models spacetime as built from discrete, causally ordered simplices to recover continuum spacetime at large scales.

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Observed surface forms (2)

Surface form	Occurrences
“Causal dynamical triangulations and the quest for quantum gravity”	1
“Nonperturbative Lorentzian quantum gravity, causality and topology change”	1

Statements (49)

Predicate	Object
instanceOf	approach to quantum gravity ⓘ lattice quantum gravity approach ⓘ theoretical physics model ⓘ
aimsTo	avoid unphysical geometries in the gravitational path integral ⓘ provide a nonperturbative definition of quantum gravity ⓘ recover continuum spacetime at large scales ⓘ
assumes	causal time slicing ⓘ fixed edge lengths for simplices ⓘ
basedOn	causally ordered simplices ⓘ sum over histories of triangulated spacetimes ⓘ
contrastsWith	Euclidean dynamical triangulations NERFINISHED ⓘ canonical quantization of gravity ⓘ loop quantum gravity ⓘ string theory NERFINISHED ⓘ
developedBy	Jan Ambjørn NERFINISHED ⓘ Jerzy Jurkiewicz NERFINISHED ⓘ Renate Loll NERFINISHED ⓘ
dimensionStudied	2D ⓘ 3D ⓘ 4D ⓘ
field	quantum cosmology ⓘ quantum gravity ⓘ theoretical physics ⓘ
hasResult	evidence for semiclassical de Sitter-like universes ⓘ phase structure of quantum spacetime in 4D models ⓘ
imposes	causal ordering of simplices ⓘ global foliation into spatial slices ⓘ
introducedIn	late 1990s ⓘ
involves	gravitational path integral over causal triangulations ⓘ
predicts	dimensional reduction at short distances ⓘ emergent four-dimensional spacetime at large scales ⓘ scale-dependent spectral dimension of spacetime ⓘ
property	Lorentzian signature at the microscopic level ⓘ background independent ⓘ nonperturbative ⓘ
relatedTo	Regge calculus NERFINISHED ⓘ dynamical triangulations ⓘ
seeksToExplain	emergence of classical general relativity ⓘ
studies	quantum fluctuations of spacetime geometry ⓘ
usesBuildingBlocks	4-simplices in four dimensions ⓘ simplices ⓘ
usesConcept	Lorentzian geometry NERFINISHED ⓘ causal structure ⓘ discrete spacetime ⓘ path integral formulation ⓘ simplicial decomposition ⓘ triangulation of spacetime ⓘ
usesMethod	Monte Carlo simulations ⓘ lattice regularization ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Planck scale → studiedIn → causal dynamical triangulations ⓘ

Renate Loll → hasPublication → causal dynamical triangulations ⓘ

this entity surface form: “Nonperturbative Lorentzian quantum gravity, causality and topology change”

Renate Loll → hasPublication → causal dynamical triangulations ⓘ

this entity surface form: “Causal dynamical triangulations and the quest for quantum gravity”