Can non-commutativity resolve the big-bang singularity?

MacEda, M; Madore, J; Manousselis, P; Zoupanos, G

dc.contributor.author	MacEda, M	en
dc.contributor.author	Madore, J	en
dc.contributor.author	Manousselis, P	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:19:59Z
dc.date.available	2014-03-01T01:19:59Z
dc.date.issued	2004	en
dc.identifier.issn	1434-6044	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15794
dc.subject	Big Bang	en
dc.subject	General Relativity	en
dc.subject	Time Scale	en
dc.subject	Non Commutative	en
dc.subject	Space Time	en
dc.subject.classification	Physics, Particles & Fields	en
dc.title	Can non-commutativity resolve the big-bang singularity?	en
heal.type	journalArticle	en
heal.identifier.primary	10.1140/epjc/s2004-01968-0	en
heal.identifier.secondary	http://dx.doi.org/10.1140/epjc/s2004-01968-0	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	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. © Springer-Verlag / Società Italiana di Fisica 2004.	en
heal.publisher	SPRINGER	en
heal.journalName	European Physical Journal C	en
dc.identifier.doi	10.1140/epjc/s2004-01968-0	en
dc.identifier.isi	ISI:000223351900012	en
dc.identifier.volume	36	en
dc.identifier.issue	4	en
dc.identifier.spage	529	en
dc.identifier.epage	534	en