Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Display Documents



  history
ID: 335053.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
Geometry for the accelerating universe
Authors:Punzi, Raffaele; Schuller, Frederic P.; Wohlfarth, Mattias N. R.
Date of Publication (YYYY-MM-DD):2007-11
Title of Journal:Physical Review D
Volume:76
Issue / Number:10
Sequence Number of Article:101501
Review Status:not specified
Audience:Not Specified
Abstract / Description:The Lorentzian spacetime metric is refined to an area metric which naturally emerges as a generalized geometry in quantum string and gauge theory. Employing the area metric curvature scalar, the Einstein-Hilbert gravitational action is reinterpreted as dynamics for an area metric. The area metric cosmology of the radiation-dominated early universe does not depart from general relativity, enabling successful nucleosynthesis. But intriguingly, without the need for dark energy or fine-tuning, area metric cosmology explains the observed small acceleration of the late universe.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
Identifiers:ISI:000251327400001 [ID No:1]
ISSN:1550-7998 [ID No:2]
DOI:10.1103/PhysRevD.76.101501
LOCALID:arXiv:hep-th/0612133
Full Text:
You have privileges to view the following file(s):
prd76_101501.pdf  [116,00 Kb] [Comment:Online Journal]  
 
0612133v1.pdf  [122,00 Kb] [Comment:arXiv:hep-th/0612133v1]  
 
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.