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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All labels observed (3)

Label	Occurrences
causal dynamical triangulations canonical	1
“Causal dynamical triangulations and the quest for quantum gravity”	1
“Nonperturbative Lorentzian quantum gravity, causality and topology change”	1

How this entity was disambiguated

This entity first appeared as the object of triple T9564444 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: causal dynamical triangulations
Context triple: [Planck scale, studiedIn, causal dynamical triangulations]

A. loop quantum gravity
Loop quantum gravity is a theoretical framework in quantum gravity that attempts to quantize spacetime itself, predicting a discrete structure at the Planck scale without requiring extra dimensions or a background spacetime.
B. Euclidean quantum gravity
Euclidean quantum gravity is an approach to quantum gravity that reformulates general relativity in imaginary (Euclidean) time to define a path integral over geometries, often used in black hole thermodynamics and early-universe cosmology.
C. Penrose spin networks
Penrose spin networks are combinatorial graphs introduced by Roger Penrose to model quantum geometry and angular momentum in a discrete, pre-spacetime framework.
D. conformal cyclic cosmology
Conformal cyclic cosmology is Roger Penrose’s speculative cosmological model proposing that the universe undergoes an infinite sequence of “aeons,” where the remote future of each becomes the Big Bang of the next through conformal geometry.
E. Euclidean quantum field theory
Euclidean quantum field theory is a formulation of quantum field theory in imaginary (Euclidean) time that enables rigorous mathematical treatment and path-integral representations closely connected to statistical mechanics.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: causal dynamical triangulations
Target entity description: 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.

A. loop quantum gravity
Loop quantum gravity is a theoretical framework in quantum gravity that attempts to quantize spacetime itself, predicting a discrete structure at the Planck scale without requiring extra dimensions or a background spacetime.
B. Euclidean quantum gravity
Euclidean quantum gravity is an approach to quantum gravity that reformulates general relativity in imaginary (Euclidean) time to define a path integral over geometries, often used in black hole thermodynamics and early-universe cosmology.
C. Penrose spin networks
Penrose spin networks are combinatorial graphs introduced by Roger Penrose to model quantum geometry and angular momentum in a discrete, pre-spacetime framework.
D. conformal cyclic cosmology
Conformal cyclic cosmology is Roger Penrose’s speculative cosmological model proposing that the universe undergoes an infinite sequence of “aeons,” where the remote future of each becomes the Big Bang of the next through conformal geometry.
E. Euclidean quantum field theory
Euclidean quantum field theory is a formulation of quantum field theory in imaginary (Euclidean) time that enables rigorous mathematical treatment and path-integral representations closely connected to statistical mechanics.
F. None of above. chosen

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 ⓘ canonical quantization of gravity ⓘ loop quantum gravity ⓘ string theory ⓘ
developedBy	Jan Ambjørn ⓘ Jerzy Jurkiewicz ⓘ Renate Loll ⓘ
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 ⓘ dynamical triangulations ⓘ
seeksToExplain	emergence of classical general relativity ⓘ
studies	quantum fluctuations of spacetime geometry ⓘ
usesBuildingBlocks	4-simplices in four dimensions ⓘ simplices ⓘ
usesConcept	Lorentzian geometry ⓘ causal structure ⓘ discrete spacetime ⓘ path integral formulation ⓘ simplicial decomposition ⓘ triangulation of spacetime ⓘ
usesMethod	Monte Carlo simulations ⓘ lattice regularization ⓘ

How these facts were elicited

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 → “Nonperturbative Lorentzian quantum gravity, causality and topology change” ⓘ

linked to: causal dynamical triangulations

Renate Loll → hasPublication → “Causal dynamical triangulations and the quest for quantum gravity” ⓘ