Phantom dark ghost in Einstein–Cartan gravity
dc.contributor.author | Chang, Yu-Chiao | |
dc.contributor.author | Bouhmadi López, Mariam ![]() | |
dc.contributor.author | Chen, Pisin | |
dc.date.accessioned | 2018-06-01T12:49:48Z | |
dc.date.available | 2018-06-01T12:49:48Z | |
dc.date.issued | 2017-05-03 | |
dc.identifier.citation | European Physical Journal C 77(5) : (2017) // Article ID 278 | es_ES |
dc.identifier.issn | 1434-6044 | |
dc.identifier.issn | 1434-6052 | |
dc.identifier.uri | http://hdl.handle.net/10810/27271 | |
dc.description.abstract | A class of dynamical dark energy models is constructed through an extended version of fermion fields corresponding to phantom dark ghost spinors, which are spin 1/2 with mass dimension 1. We find that if these spinors interact with torsion fields in a homogeneous and isotropic universe, then it does not imply any future dark energy singularity or any abrupt event, though the fermion has a negative kinetic energy. In fact, the equation of state of this dark energy model will asymptotically approach the value w = -1 from above without crossing the phantom divide and inducing therefore a de Sitter state. Consequently, we expect the model to be stable because no real phantom fields will be created. At late time, the torsion fields will vanish as the corresponding phantom dark ghost spinors dilute. As would be expected, intuitively, this result is unaffected by the presence of cold dark matter although the proof is not as straightforward as in general relativity. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | cosmological consequences | es_ES |
dc.subject | elko system | es_ES |
dc.subject | big rip | es_ES |
dc.subject | energy | es_ES |
dc.subject | torsion | es_ES |
dc.subject | number | es_ES |
dc.subject | worse | es_ES |
dc.title | Phantom dark ghost in Einstein–Cartan gravity | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://link.springer.com/article/10.1140/epjc/s10052-017-4826-5 | es_ES |
dc.identifier.doi | 10.1140/epjc/s10052-017-4826-5 | |
dc.departamentoes | Física teórica e historia de la ciencia | es_ES |
dc.departamentoeu | Fisika teorikoa eta zientziaren historia | es_ES |
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