Barrett–Crane model
id:
barrett-crane-model-197-3507304
title:
Barrett–Crane model
text:
The Barrett–Crane model is a model in quantum gravity, first published in 1998, which was defined using the Plebanski action. The B field in the action is supposed to be a s o -valued 2-form, i.e. taking values in the Lie algebra of a special orthogonal group. The term in the action has the same symmetries as it does to provide the Einstein–Hilbert action. But the form of is not unique and can be posed by the different forms: ± e i ∧ e j ± ϵ i j k l e k ∧ e l where e i is the tetrad and ϵ i j k
brand slug:
wiki
category slug:
encyclopedia
description:
Model of quantum gravity
original url:
https://en.wikipedia.org/wiki/Barrett%E2%80%93Crane_model
date created:
date modified:
2022-07-24T18:43:22Z
main entity:
{"identifier":"Q4863456","url":"https://www.wikidata.org/entity/Q4863456"}
image:
fields total:
13
integrity:
14