Cosmological Constant from Condensation of Defect Excitations

A key challenge for many quantum gravity approaches is to construct states that describe smooth geometries on large scales. Here we define a family of (2+1)-dimensional quantum gravity states which arise from curvature excitations concentrated at point like defects and describe homogeneously curved...

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Bibliographic Details
Main Author: Bianca Dittrich
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Universe
Subjects:
Online Access:http://www.mdpi.com/2218-1997/4/7/81