Published August 2004
| Version v1
Journal article
Can non-commutativity resolve the big-bang singularity?
- 1. Laboratoire de Physique Theorique, Universite de Paris-Sud, Batiment 211, 91405, Orsay (France)
- 2. Physics Department, National Technical University, Zografou Campus, 157 80, Zografou, Athens (Greece)
- 3. Department of Engineering Sciences, University of Patras, 26110, Patras (Greece)
- 4. Theory Division, CERN, 1211, Geneva 23 (Switzerland)
Description
A possible way to resolve the singularities of general relativity is proposed based on the assumption that the description of space-time using commuting coordinates is not valid above a certain fundamental scale. Beyond that scale it is assumed that the space-time has non-commutative structure leading in turn to a resolution of the singularity. As a first attempt towards realizing the above programme a modification of the Kasner metric is constructed which is commutative only at large time scales. At small time scales, near the singularity, the commutation relations among the space coordinates diverge. We interpret this result as meaning that the singularity has been completely delocalized. (orig.)
Availability note (English)
Available from: http://dx.doi.org/10.1140/epjc/s2004-01968-0Additional details
Identifiers
Publishing Information
- Journal Title
- European Physical Journal. C
- Journal Volume
- 36
- Journal Issue
- 4
- Journal Page Range
- p. 529-534
- ISSN
- 1434-6044
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 35088221
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COMMUTATION RELATIONS; COSMOLOGY; GENERAL RELATIVITY THEORY; METRICS; SCALING LAWS; SINGULARITY; SPACE-TIME
- Descriptors DEC
- FIELD THEORIES