On ekpyrotic brane collisions

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dc.contributor University of Helsinki, Department of Physics en
dc.contributor.author Räsänen, Syksy
dc.date.accessioned 2020-01-23T08:28:01Z
dc.date.available 2020-01-23T08:28:01Z
dc.date.issued 2002-02-14
dc.identifier.citation Räsänen , S 2002 , ' On ekpyrotic brane collisions ' , Nuclear Physics, Section B , vol. 626 , no. 1 , pp. 183-206 . https://doi.org/10.1016/S0550-3213 en
dc.identifier.issn 0550-3213
dc.identifier.other PURE: 130554537
dc.identifier.other PURE UUID: 1d09d815-8d68-4bd9-a8ed-7aae857c1636
dc.identifier.other RIS: urn:48249D4FCD4C397B8402D86E34FB31A3
dc.identifier.other ORCID: /0000-0003-2296-302X/work/68615181
dc.identifier.uri http://hdl.handle.net/10138/310201
dc.description.abstract We derive the five-dimensional metrics which describe a non-singular boundary brane collision in the ekpyrotic scenario in the context of general relativity, taking into account brane tension. We show that the metrics constrain matter created in the collision to have negative energy density or pressure. In particular, the minimal field content of heterotic M-theory leads to negative energy density. We also consider bulk brane-boundary brane collisions and show that the collapse of the fifth dimension is an artifact of the four-dimensional effective theory. en
dc.format.extent 24
dc.language.iso eng
dc.relation.ispartof Nuclear Physics, Section B
dc.rights en
dc.subject 114 Physical sciences en
dc.title On ekpyrotic brane collisions en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1016/S0550-3213
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/acceptedVersion
dc.contributor.pbl

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