{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363388845774491008.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1007/jhep11(2013)135"}},{"identifier":{"@type":"URI","@value":"https://link.springer.com/content/pdf/10.1007/JHEP11(2013)135.pdf"}},{"identifier":{"@type":"URI","@value":"https://link.springer.com/article/10.1007/JHEP11(2013)135/fulltext.html"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/content/pdf/10.1007/JHEP11(2013)135"}}],"dc:title":[{"@value":"Mimetic dark matter"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>A<jats:sc>bstract</jats:sc>\n          </jats:title>\n          <jats:p>We modify Einstein’s theory of gravity, isolating the conformal degree of freedom in a covariant way. This is done by introducing a physical metric defined in terms of an auxiliary metric and a scalar field appearing through its first derivatives. The resulting equations of motion split into a traceless equation obtained through variation with respect to the auxiliary metric and an additional differential equation for the trace part. As a result the conformal degree of freedom becomes dynamical even in the absence of matter. We show that this extra degree of freedom can mimic cold dark matter.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383388845774491008","@type":"Researcher","foaf:name":[{"@value":"Ali H. Chamseddine"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388845774491009","@type":"Researcher","foaf:name":[{"@value":"Viatcheslav Mukhanov"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"10298479"},{"@type":"PISSN","@value":"https://id.crossref.org/issn/11266708"}],"prism:publicationName":[{"@value":"Journal of High Energy Physics"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2013-11","prism:volume":"2013","prism:number":"11","prism:startingPage":"135"},"reviewed":"false","dc:rights":["https://creativecommons.org/licenses/by/2.0","https://creativecommons.org/licenses/by/2.0"],"url":[{"@id":"https://link.springer.com/content/pdf/10.1007/JHEP11(2013)135.pdf"},{"@id":"https://link.springer.com/article/10.1007/JHEP11(2013)135/fulltext.html"},{"@id":"http://link.springer.com/content/pdf/10.1007/JHEP11(2013)135"}],"createdAt":"2013-11-19","modifiedAt":"2021-09-01","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050009640108971904","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Mimetic Euler-Heisenberg theory, charged solutions, and multihorizon black holes"}]},{"@id":"https://cir.nii.ac.jp/crid/1050282677936845696","@type":"Article","resourceType":"学術雑誌論文(journal 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