The energy-momentum of a Poisson structure

Buric, M; Madore, J; Zoupanos, G

dc.contributor.author	Buric, M	en
dc.contributor.author	Madore, J	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:29:19Z
dc.date.available	2014-03-01T01:29:19Z
dc.date.issued	2008	en
dc.identifier.issn	1434-6044	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19223
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	GRAVITATIONAL RADIATION	en
dc.subject.other	HIGH FREQUENCY	en
dc.subject.other	GEOMETRY	en
dc.subject.other	LIMIT	en
dc.title	The energy-momentum of a Poisson structure	en
heal.type	journalArticle	en
heal.identifier.primary	10.1140/epjc/s10052-008-0602-x	en
heal.identifier.secondary	http://dx.doi.org/10.1140/epjc/s10052-008-0602-x	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Consider the quasi-commutative approximation to a noncommutative geometry. It is shown that there is a natural map from the resulting Poisson structure to the Riemann curvature of a metric. This map is applied to the study of high-frequency gravitational radiation. In classical gravity in the WKB approximation there are two results of interest, a dispersion relation and a conservation law. Both of these results can be extended to the noncommutative case, with the difference that they result from a cocycle condition on the high-frequency contribution to the Poisson structure, not from the field equations. © 2008 Springer-Verlag / Società Italiana di Fisica.	en
heal.publisher	SPRINGER	en
heal.journalName	European Physical Journal C	en
dc.identifier.doi	10.1140/epjc/s10052-008-0602-x	en
dc.identifier.isi	ISI:000256325100015	en
dc.identifier.volume	55	en
dc.identifier.issue	3	en
dc.identifier.spage	489	en
dc.identifier.epage	498	en