Causal dynamical triangulation: Difference between revisions

removed "peacock language" and added a solid reference
m (Dating maintenance tags: {{No footnotes}})
(removed "peacock language" and added a solid reference)
This means that it does not assume any pre-existing arena (dimensional space), but rather attempts to show how the [[spacetime]] fabric itself evolves.
 
There is evidence <ref>
The [http://loops05.aei.mpg.de/ Loops '05] conference, hosted by many loop quantum gravity theorists, included several presentations which discussed CDT in great depth, and revealed it to be a pivotal insight for theorists{{Peacock term|date=December 2019}}. It has sparked considerable interest{{Peacock term|date=December 2019}} as it appears to have a good semi-classical description. At large scales, it re-creates the familiar 4-dimensional spacetime, but it shows spacetime to be 2-d near the [[Planck scale]], and reveals a [[fractal]] structure on slices of constant time. These interesting results agree with the findings of Lauscher and Reuter, who use an approach called [[Asymptotic safety in quantum gravity#Quantum Einstein Gravity (QEG)|Quantum Einstein Gravity]], and with other recent theoretical work. A brief article appeared in the February 2007 issue of ''[[Scientific American]]'', which gives an overview of the theory, explained why some physicists are excited about it, and put it in historical perspective. The same publication gives CDT, and its primary authors, a feature article in its July 2008 issue.
{{cite journal | last=Loll | first=Renate| year =2019| title = Quantum gravity from causal dynamical triangulations: a review | journal = Classical and Quantum Gravity | volume = 37 | issue = 1 | page = 013002 | doi = 10.1088/1361-6382/ab57c7}}</ref>
that at large scales CDT approximates the familiar 4-dimensional spacetime, but shows spacetime to be 2-dimensional near the [[Planck scale]], and reveals a [[fractal]] structure on slices of constant time. These interesting results agree with the findings of Lauscher and Reuter, who use an approach called [[Asymptotic safety in quantum gravity#Quantum Einstein Gravity (QEG)|Quantum Einstein Gravity]], and with other recent theoretical work.
 
== Introduction ==