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PhysRevD.97.043512.pdf | 265.51 kB | Adobe PDF | 見る/開く |
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dc.contributor.author | Bramberger, Sebastian F. | en |
dc.contributor.author | Coates, Andrew | en |
dc.contributor.author | Magueijo, João | en |
dc.contributor.author | Mukohyama, Shinji | en |
dc.contributor.author | Namba, Ryo | en |
dc.contributor.author | Watanabe, Yota | en |
dc.contributor.alternative | 向山, 信治 | ja |
dc.date.accessioned | 2018-04-10T07:39:16Z | - |
dc.date.available | 2018-04-10T07:39:16Z | - |
dc.date.issued | 2018-02-15 | - |
dc.identifier.issn | 2470-0010 | - |
dc.identifier.uri | http://hdl.handle.net/2433/230497 | - |
dc.description.abstract | In Hořava-Lifshitz gravity a scaling isotropic in space but anisotropic in spacetime, often called “anisotropic scaling, ” with the dynamical critical exponent z=3, lies at the base of its renormalizability. This scaling also leads to a novel mechanism of generating scale-invariant cosmological perturbations, solving the horizon problem without inflation. In this paper we propose a possible solution to the flatness problem, in which we assume that the initial condition of the Universe is set by a small instanton respecting the same scaling. We argue that the mechanism may be more general than the concrete model presented here. We rely simply on the deformed dispersion relations of the theory, and on equipartition of the various forms of energy at the starting point. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society (APS) | en |
dc.rights | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. | en |
dc.title | Solving the flatness problem with an anisotropic instanton in Hořava-Lifshitz gravity | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Physical Review D | en |
dc.identifier.volume | 97 | - |
dc.identifier.issue | 4 | - |
dc.relation.doi | 10.1103/PhysRevD.97.043512 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 043512 | - |
dc.address | Max Planck Institute for Gravitational Physics (Albert Einstein Institute) | en |
dc.address | School of Mathematical Sciences, University of Nottingham, University Park | en |
dc.address | Theoretical Physics, Blackett Laboratory, Imperial College | en |
dc.address | Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University・Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo | en |
dc.address | Department of Physics, McGill University | en |
dc.address | Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo・Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University | en |
dcterms.accessRights | open access | - |
datacite.awardNumber | 17H02890 | - |
datacite.awardNumber | 17H06359 | - |
datacite.awardNumber | 17H06357 | - |
datacite.awardNumber | 16J06266 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
出現コレクション: | 学術雑誌掲載論文等 |
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